| Σ | # | Presentation | Description | Related |
| 6 | 22 | ⟨a, b | ab=aa, bb=1⟩ | Finite non-commutative monoid with 6 elements | 44 iso, 63 anti-iso |
| 6 | 63 | ⟨a, b | ab=a, ba=b⟩ | Finite non-commutative monoid with 3 elements | 61 iso, 17 anti-iso |
| 7 | 124 | ⟨a, b | aab=a, bbb=1⟩ | Finite non-commutative monoid with 12 elements | 23 iso, 38 anti-iso |
| 7 | 158 | ⟨a, b | ab=aa, ba=b⟩ | Finite non-commutative monoid with 4 elements | 8 iso, 6 anti-iso |
| 7 | 160 | ⟨a, b | ab=aa, bb=b⟩ | Finite non-commutative monoid with 6 elements | 4 anti-iso |
| 7 | 242 | ⟨a, b | aa=a, abb=b⟩ | Finite non-commutative monoid with 4 elements | 14 iso |
| 7 | 268 | ⟨a, b | ab=a, baa=b⟩ | Finite non-commutative monoid with 5 elements | 63 iso, 23 anti-iso |
| 7 | 330 | ⟨a, b | aa=1, abba=b⟩ | Finite non-commutative monoid with 8 elements | 60 iso |
| 7 | 332 | ⟨a, b | aa=1, abbb=b⟩ | Finite non-commutative monoid with 10 elements | 51 iso, 34 anti-iso |
| 8 | 402 | ⟨a, b | aaa=ab, bbb=1⟩ | Finite non-commutative monoid with 21 elements | 12 iso, 27 anti-iso |
| 8 | 425 | ⟨a, b | aab=ba, bbb=1⟩ | Finite non-commutative monoid with 24 elements | 18 iso, 3 anti-iso |
| 8 | 450 | ⟨a, b | bab=aa, bbb=1⟩ | Finite non-commutative monoid with 27 elements | 27 iso |
| 8 | 526 | ⟨a, b | aab=a, bbbb=1⟩ | Finite non-commutative monoid with 20 elements | 10 iso, 9 anti-iso |
| 8 | 568 | ⟨a, b | aaa=a, abb=b⟩ | Finite non-commutative monoid with 9 elements | 5 iso |
| 8 | 601 | ⟨a, b | aba=b, bab=a⟩ | Finite non-commutative monoid with 9 elements | 3 iso |
| 8 | 639 | ⟨a, b | ab=aa, baa=b⟩ | Finite non-commutative monoid with 6 elements | 5 iso, 8 anti-iso |
| 8 | 645 | ⟨a, b | ab=aa, bbb=b⟩ | Finite non-commutative monoid with 12 elements | 1 anti-iso |
| 8 | 656 | ⟨a, b | bb=aa, aba=a⟩ | Finite non-commutative monoid with 10 elements | 1 iso |
| 8 | 657 | ⟨a, b | bb=aa, aba=b⟩ | Finite non-commutative monoid with 10 elements | 1 iso |
| 8 | 893 | ⟨a, b | aa=a, abbb=b⟩ | Finite non-commutative monoid with 6 elements | 19 iso |
| 8 | 937 | ⟨a, b | ab=a, baaa=b⟩ | Finite non-commutative monoid with 7 elements | 54 iso, 12 anti-iso |
| 8 | 961 | ⟨a, b | aa=a, aba=bb⟩ | Finite non-commutative monoid with 8 elements | 5 iso |
| 8 | 970 | ⟨a, b | aa=a, bbb=ab⟩ | Finite non-commutative monoid with 10 elements | 3 iso |
| 8 | 1011 | ⟨a, b | ab=a, baa=bb⟩ | Finite non-commutative monoid with 6 elements | 12 iso, 1 anti-iso |
| 8 | 1019 | ⟨a, b | ab=a, bba=bb⟩ | Finite non-commutative monoid with 5 elements | 25 iso |
| 8 | 1022 | ⟨a, b | ab=a, bbb=ba⟩ | Finite non-commutative monoid with 5 elements | 4 iso |
| 8 | 1121 | ⟨a, b | aa=1, abbba=b⟩ | Finite non-commutative monoid with 18 elements | 17 iso |
| 8 | 1123 | ⟨a, b | aa=1, abbbb=b⟩ | Finite non-commutative monoid with 14 elements | 42 iso, 17 anti-iso |
| 9 | 1307 | ⟨a, b | bab=aaa, bbb=1⟩ | Finite non-commutative monoid with 147 elements | 9 iso |
| 9 | 1345 | ⟨a, b | aaab=a, bbbb=1⟩ | Finite non-commutative monoid with 36 elements | 5 iso, 8 anti-iso |
| 9 | 1434 | ⟨a, b | baab=a, bbbb=1⟩ | Finite non-commutative monoid with 100 elements | 9 iso |
| 9 | 1523 | ⟨a, b | aab=ba, bbbb=1⟩ | Finite non-commutative monoid with 64 elements | 6 iso |
| 9 | 1581 | ⟨a, b | aaa=aa, abb=b⟩ | Finite non-commutative monoid with 6 elements | 5 iso |
| 9 | 1593 | ⟨a, b | aaa=ab, baa=b⟩ | Finite non-commutative monoid with 7 elements | 1 iso, 2 anti-iso |
| 9 | 1595 | ⟨a, b | aaa=ab, bab=b⟩ | Finite non-commutative monoid with 9 elements | 4 iso, 5 anti-iso |
| 9 | 1599 | ⟨a, b | aaa=ab, bbb=b⟩ | Finite non-commutative monoid with 21 elements | 1 anti-iso |
| 9 | 1602 | ⟨a, b | aaa=bb, aba=a⟩ | Finite non-commutative monoid with 15 elements | 2 iso |
| 9 | 1603 | ⟨a, b | aaa=bb, aba=b⟩ | Finite non-commutative monoid with 15 elements | 1 iso |
| 9 | 1615 | ⟨a, b | aab=aa, baa=b⟩ | Finite non-commutative monoid with 8 elements | 9 iso, 5 anti-iso |
| 9 | 1646 | ⟨a, b | aab=bb, aba=a⟩ | Finite non-commutative monoid with 12 elements | 2 iso |
| 9 | 1650 | ⟨a, b | aab=bb, baa=a⟩ | Finite non-commutative monoid with 8 elements | 4 iso, 11 anti-iso |
| 9 | 1654 | ⟨a, b | aab=bb, bba=a⟩ | Finite non-commutative monoid with 10 elements | 6 iso |
| 9 | 1682 | ⟨a, b | aba=bb, bab=a⟩ | Finite non-commutative monoid with 14 elements | 1 iso |
| 9 | 1695 | ⟨a, b | bab=aa, bbb=b⟩ | Finite non-commutative monoid with 27 elements | 1 iso |
| 9 | 1907 | ⟨a, b | aab=a, bbbbb=1⟩ | Finite non-commutative monoid with 30 elements | 11 iso, 4 anti-iso |
| 9 | 1991 | ⟨a, b | aaa=a, abba=b⟩ | Finite non-commutative monoid with 9 elements | 3 iso |
| 9 | 1993 | ⟨a, b | aaa=a, abbb=b⟩ | Finite non-commutative monoid with 15 elements | 4 iso |
| 9 | 2051 | ⟨a, b | aab=a, bbbb=b⟩ | Finite non-commutative monoid with 16 elements | 4 anti-iso |
| 9 | 2064 | ⟨a, b | aab=b, abba=a⟩ | Finite non-commutative monoid with 9 elements | 14 iso, 24 anti-iso |
| 9 | 2118 | ⟨a, b | aba=b, baab=a⟩ | Finite non-commutative monoid with 13 elements | 4 iso |
| 9 | 2207 | ⟨a, b | ab=aa, bbbb=b⟩ | Finite non-commutative monoid with 20 elements | 1 anti-iso |
| 9 | 2231 | ⟨a, b | ab=aa, aaa=bb⟩ | Finite non-commutative monoid with 7 elements | 3 iso |
| 9 | 2247 | ⟨a, b | ab=aa, baa=bb⟩ | Finite non-commutative monoid with 8 elements | 1 iso |
| 9 | 2255 | ⟨a, b | ab=aa, bba=bb⟩ | Finite non-commutative monoid with 9 elements | |
| 9 | 2256 | ⟨a, b | ab=aa, bbb=aa⟩ | Finite non-commutative monoid with 8 elements | 1 iso |
| 9 | 2258 | ⟨a, b | ab=aa, bbb=ba⟩ | Finite non-commutative monoid with 8 elements | |
| 9 | 2259 | ⟨a, b | ab=aa, bbb=bb⟩ | Finite non-commutative monoid with 12 elements | |
| 9 | 2271 | ⟨a, b | bb=aa, aaa=ab⟩ | Finite non-commutative monoid with 7 elements | 1 iso, 2 anti-iso |
| 9 | 2277 | ⟨a, b | bb=aa, aba=aa⟩ | Finite non-commutative monoid with 10 elements | 1 iso |
| 9 | 2443 | ⟨a, b | aaa=1, abbbb=b⟩ | Finite non-commutative monoid with 30 elements | 14 iso, 5 anti-iso |
| 9 | 2584 | ⟨a, b | aaa=1, abbb=ba⟩ | Finite non-commutative monoid with 81 elements | 6 iso |
| 9 | 2883 | ⟨a, b | aa=a, abbbb=b⟩ | Finite non-commutative monoid with 8 elements | 14 iso |
| 9 | 3034 | ⟨a, b | aa=a, bbbb=ab⟩ | Finite non-commutative monoid with 14 elements | 2 iso |
| 9 | 3107 | ⟨a, b | ab=a, baaa=bb⟩ | Finite non-commutative monoid with 8 elements | 9 iso |
| 9 | 3123 | ⟨a, b | ab=a, bbaa=bb⟩ | Finite non-commutative monoid with 8 elements | 10 iso |
| 9 | 3134 | ⟨a, b | ab=a, bbbb=ba⟩ | Finite non-commutative monoid with 6 elements | 2 iso |
| 9 | 3197 | ⟨a, b | ab=a, bbb=baa⟩ | Finite non-commutative monoid with 7 elements | 5 iso |
| 9 | 3199 | ⟨a, b | ab=a, bbb=bba⟩ | Finite non-commutative monoid with 6 elements | 3 iso |
| 9 | 3375 | ⟨a, b | aa=1, ababba=b⟩ | Finite non-commutative monoid with 22 elements | 15 iso, 12 anti-iso |
| 9 | 3385 | ⟨a, b | aa=1, abbbba=b⟩ | Finite non-commutative monoid with 32 elements | 17 iso |
| 9 | 3387 | ⟨a, b | aa=1, abbbbb=b⟩ | Finite non-commutative monoid with 18 elements | 22 iso, 9 anti-iso |
| 9 | 3645 | ⟨a, b | aa=1, abab=bbb⟩ | Finite non-commutative monoid with 26 elements | 12 iso, 7 anti-iso |
| 10 | 3767 | ⟨a, b | aaaa=ab, bbbb=1⟩ | Finite non-commutative monoid with 52 elements | 3 anti-iso |
| 10 | 3818 | ⟨a, b | aaab=ba, bbbb=1⟩ | Finite non-commutative monoid with 324 elements | |
| 10 | 3914 | ⟨a, b | aabb=ba, bbbb=1⟩ | Finite non-commutative monoid with 44 elements | 3 iso, 4 anti-iso |
| 10 | 4125 | ⟨a, b | aab=aaa, baa=b⟩ | Finite non-commutative monoid with 9 elements | 1 iso, 1 anti-iso |
| 10 | 4155 | ⟨a, b | abb=aaa, bba=b⟩ | Finite non-commutative monoid with 11 elements | 4 iso |
| 10 | 4413 | ⟨a, b | aaab=a, bbbbb=1⟩ | Finite non-commutative monoid with 55 elements | 5 iso |
| 10 | 4594 | ⟨a, b | abba=b, aaaaa=1⟩ | Finite non-commutative monoid with 605 elements | 3 iso |
| 10 | 4623 | ⟨a, b | aaaa=a, abba=b⟩ | Finite non-commutative monoid with 28 elements | 1 iso |
| 10 | 4625 | ⟨a, b | aaaa=a, abbb=b⟩ | Finite non-commutative monoid with 28 elements | 2 iso |
| 10 | 4683 | ⟨a, b | aaab=b, abba=a⟩ | Finite non-commutative monoid with 13 elements | 15 iso, 1 anti-iso |
| 10 | 4691 | ⟨a, b | aaab=b, babb=a⟩ | Finite non-commutative monoid with 28 elements | 3 iso |
| 10 | 4749 | ⟨a, b | abba=b, baab=a⟩ | Finite non-commutative monoid with 25 elements | |
| 10 | 4917 | ⟨a, b | aab=ba, bbbbb=1⟩ | Finite non-commutative monoid with 160 elements | 1 iso |
| 10 | 5035 | ⟨a, b | aaa=aa, abbb=b⟩ | Finite non-commutative monoid with 9 elements | 3 iso |
| 10 | 5065 | ⟨a, b | aaa=ab, babb=b⟩ | Finite non-commutative monoid with 13 elements | 7 iso |
| 10 | 5073 | ⟨a, b | aaa=ab, bbbb=b⟩ | Finite non-commutative monoid with 36 elements | 1 iso |
| 10 | 5088 | ⟨a, b | aaa=bb, baab=a⟩ | Finite non-commutative monoid with 26 elements | 1 iso |
| 10 | 5111 | ⟨a, b | aab=aa, baaa=b⟩ | Finite non-commutative monoid with 11 elements | 7 iso |
| 10 | 5202 | ⟨a, b | aab=bb, abba=a⟩ | Finite non-commutative monoid with 12 elements | 9 iso, 32 anti-iso |
| 10 | 5218 | ⟨a, b | aab=bb, bbba=a⟩ | Finite non-commutative monoid with 14 elements | 5 iso, 1 anti-iso |
| 10 | 5300 | ⟨a, b | aaa=aa, aba=bb⟩ | Finite non-commutative monoid with 27 elements | |
| 10 | 5309 | ⟨a, b | aaa=aa, bbb=ab⟩ | Finite non-commutative monoid with 21 elements | |
| 10 | 5322 | ⟨a, b | aaa=ab, abb=bb⟩ | Finite non-commutative monoid with 11 elements | 3 iso |
| 10 | 5330 | ⟨a, b | aaa=ab, bab=bb⟩ | Finite non-commutative monoid with 12 elements | 1 iso |
| 10 | 5334 | ⟨a, b | aaa=ab, bba=bb⟩ | Finite non-commutative monoid with 13 elements | |
| 10 | 5335 | ⟨a, b | aaa=ab, bbb=aa⟩ | Finite non-commutative monoid with 11 elements | 2 iso, 1 anti-iso |
| 10 | 5336 | ⟨a, b | aaa=ab, bbb=ab⟩ | Finite non-commutative monoid with 13 elements | 1 iso |
| 10 | 5337 | ⟨a, b | aaa=ab, bbb=ba⟩ | Finite non-commutative monoid with 13 elements | |
| 10 | 5339 | ⟨a, b | aaa=bb, aab=ab⟩ | Finite non-commutative monoid with 9 elements | 1 iso |
| 10 | 5340 | ⟨a, b | aaa=bb, aab=ba⟩ | Finite non-commutative monoid with 13 elements | |
| 10 | 5342 | ⟨a, b | aaa=bb, aba=aa⟩ | Finite non-commutative monoid with 15 elements | 1 iso |
| 10 | 5344 | ⟨a, b | aaa=bb, aba=bb⟩ | Finite non-commutative monoid with 15 elements | 2 iso |
| 10 | 5346 | ⟨a, b | aaa=bb, abb=ab⟩ | Finite non-commutative monoid with 10 elements | 2 iso, 1 anti-iso |
| 10 | 5349 | ⟨a, b | aaa=bb, bab=aa⟩ | Finite non-commutative monoid with 20 elements | 1 iso |
| 10 | 5356 | ⟨a, b | aab=aa, aba=bb⟩ | Finite non-commutative monoid with 10 elements | |
| 10 | 5404 | ⟨a, b | aab=bb, aba=aa⟩ | Finite non-commutative monoid with 14 elements | 1 iso |
| 10 | 5410 | ⟨a, b | aab=bb, bab=aa⟩ | Finite non-commutative monoid with 11 elements | 2 iso |
| 10 | 5421 | ⟨a, b | aba=bb, bab=aa⟩ | Finite non-commutative monoid with 32 elements | |
| 10 | 6101 | ⟨a, b | aab=a, bbbbbb=1⟩ | Finite non-commutative monoid with 42 elements | 3 iso |
| 10 | 6251 | ⟨a, b | aaa=a, aabba=b⟩ | Finite non-commutative monoid with 7 elements | 1 iso |
| 10 | 6263 | ⟨a, b | aaa=a, abbba=b⟩ | Finite non-commutative monoid with 19 elements | |
| 10 | 6265 | ⟨a, b | aaa=a, abbbb=b⟩ | Finite non-commutative monoid with 21 elements | 2 iso |
| 10 | 6381 | ⟨a, b | aab=a, bbbbb=b⟩ | Finite non-commutative monoid with 25 elements | 1 iso |
| 10 | 6428 | ⟨a, b | aab=b, babbb=a⟩ | Finite non-commutative monoid with 17 elements | 2 iso |
| 10 | 6514 | ⟨a, b | aba=b, baaab=a⟩ | Finite non-commutative monoid with 17 elements | |
| 10 | 6536 | ⟨a, b | aaa=a, aaba=bb⟩ | Finite non-commutative monoid with 25 elements | |
| 10 | 6560 | ⟨a, b | aaa=a, bbbb=ab⟩ | Finite non-commutative monoid with 30 elements | |
| 10 | 6633 | ⟨a, b | aab=a, baaa=bb⟩ | Finite non-commutative monoid with 10 elements | 20 iso, 1 anti-iso |
| 10 | 6660 | ⟨a, b | aab=a, bbbb=ba⟩ | Finite non-commutative monoid with 12 elements | 1 anti-iso |
| 10 | 6661 | ⟨a, b | aab=a, bbbb=bb⟩ | Finite non-commutative monoid with 12 elements | 1 anti-iso |
| 10 | 6664 | ⟨a, b | aab=b, aaaa=ba⟩ | Finite non-commutative monoid with 8 elements | 1 iso |
| 10 | 6718 | ⟨a, b | aab=b, bbba=aa⟩ | Finite non-commutative monoid with 14 elements | 2 iso |
| 10 | 6728 | ⟨a, b | aba=a, aaaa=bb⟩ | Finite non-commutative monoid with 20 elements | |
| 10 | 6732 | ⟨a, b | aba=a, aaab=bb⟩ | Finite non-commutative monoid with 18 elements | |
| 10 | 6764 | ⟨a, b | aba=b, aaaa=bb⟩ | Finite non-commutative monoid with 20 elements | |
| 10 | 6788 | ⟨a, b | aba=b, baab=aa⟩ | Finite non-commutative monoid with 18 elements | |
| 10 | 6795 | ⟨a, b | aba=b, bbbb=aa⟩ | Finite non-commutative monoid with 18 elements | |
| 10 | 6834 | ⟨a, b | aba=b, abb=aaa⟩ | Finite non-commutative monoid with 11 elements | |
| 10 | 6838 | ⟨a, b | aba=b, bab=aaa⟩ | Finite non-commutative monoid with 19 elements | |
| 10 | 7013 | ⟨a, b | ab=aa, bbbbb=b⟩ | Finite non-commutative monoid with 30 elements | |
| 10 | 7039 | ⟨a, b | bb=aa, aaaba=b⟩ | Finite non-commutative monoid with 18 elements | 2 iso |
| 10 | 7050 | ⟨a, b | bb=aa, ababa=a⟩ | Finite non-commutative monoid with 26 elements | |
| 10 | 7057 | ⟨a, b | ab=aa, aaaa=bb⟩ | Finite non-commutative monoid with 8 elements | 7 iso |
| 10 | 7089 | ⟨a, b | ab=aa, baaa=bb⟩ | Finite non-commutative monoid with 10 elements | 3 iso |
| 10 | 7105 | ⟨a, b | ab=aa, bbaa=bb⟩ | Finite non-commutative monoid with 12 elements | 2 iso |
| 10 | 7114 | ⟨a, b | ab=aa, bbbb=aa⟩ | Finite non-commutative monoid with 11 elements | 1 iso |
| 10 | 7116 | ⟨a, b | ab=aa, bbbb=ba⟩ | Finite non-commutative monoid with 11 elements | |
| 10 | 7117 | ⟨a, b | ab=aa, bbbb=bb⟩ | Finite non-commutative monoid with 20 elements | |
| 10 | 7139 | ⟨a, b | bb=aa, aaaa=ab⟩ | Finite non-commutative monoid with 9 elements | 3 iso |
| 10 | 7143 | ⟨a, b | bb=aa, aaab=ba⟩ | Finite non-commutative monoid with 13 elements | 1 iso |
| 10 | 7152 | ⟨a, b | bb=aa, abab=aa⟩ | Finite non-commutative monoid with 17 elements | |
| 10 | 7153 | ⟨a, b | bb=aa, abab=ab⟩ | Finite non-commutative monoid with 17 elements | |
| 10 | 7154 | ⟨a, b | bb=aa, abab=ba⟩ | Finite non-commutative monoid with 17 elements | |
| 10 | 7519 | ⟨a, b | aaa=1, ababba=b⟩ | Finite non-commutative monoid with 339 elements | 6 iso, 1 anti-iso |
| 10 | 7529 | ⟨a, b | aaa=1, abbbba=b⟩ | Finite non-commutative monoid with 1083 elements | 4 iso |
| 10 | 7531 | ⟨a, b | aaa=1, abbbbb=b⟩ | Finite non-commutative monoid with 39 elements | 4 iso |
| 10 | 7795 | ⟨a, b | aaa=1, abbab=ba⟩ | Finite non-commutative monoid with 129 elements | 1 iso, 2 anti-iso |
| 10 | 7802 | ⟨a, b | aaa=1, abbbb=ba⟩ | Finite non-commutative monoid with 192 elements | 1 iso, 1 anti-iso |
| 10 | 7815 | ⟨a, b | aaa=1, babbb=ab⟩ | Finite non-commutative monoid with 84 elements | 7 iso |
| 10 | 8619 | ⟨a, b | aa=a, abbbbb=b⟩ | Finite non-commutative monoid with 10 elements | 5 iso |
| 10 | 8777 | ⟨a, b | ab=a, baaaaa=b⟩ | Finite non-commutative monoid with 11 elements | 20 iso, 5 anti-iso |
| 10 | 8910 | ⟨a, b | aa=a, bbbbb=ab⟩ | Finite non-commutative monoid with 18 elements | 1 iso |
| 10 | 9051 | ⟨a, b | ab=a, baaaa=bb⟩ | Finite non-commutative monoid with 10 elements | 4 iso |
| 10 | 9083 | ⟨a, b | ab=a, bbaaa=bb⟩ | Finite non-commutative monoid with 11 elements | 4 iso |
| 10 | 9110 | ⟨a, b | ab=a, bbbbb=ba⟩ | Finite non-commutative monoid with 7 elements | 1 iso |
| 10 | 9327 | ⟨a, b | ab=a, baaa=bbb⟩ | Finite non-commutative monoid with 9 elements | 3 iso |
| 10 | 9359 | ⟨a, b | ab=a, bbaa=bbb⟩ | Finite non-commutative monoid with 9 elements | 2 iso |
| 10 | 9375 | ⟨a, b | ab=a, bbba=bbb⟩ | Finite non-commutative monoid with 7 elements | 3 iso |
| 10 | 9380 | ⟨a, b | ab=a, bbbb=baa⟩ | Finite non-commutative monoid with 8 elements | 2 iso |
| 10 | 9382 | ⟨a, b | ab=a, bbbb=bba⟩ | Finite non-commutative monoid with 7 elements | 1 iso |
| 10 | 9737 | ⟨a, b | aa=1, ababbba=b⟩ | Finite non-commutative monoid with 56 elements | 7 iso |
| 10 | 9739 | ⟨a, b | aa=1, ababbbb=b⟩ | Finite non-commutative monoid with 34 elements | 2 iso, 1 anti-iso |
| 10 | 9747 | ⟨a, b | aa=1, abbabba=b⟩ | Finite non-commutative monoid with 50 elements | 5 iso |
| 10 | 9757 | ⟨a, b | aa=1, abbbbba=b⟩ | Finite non-commutative monoid with 50 elements | 2 iso |
| 10 | 9759 | ⟨a, b | aa=1, abbbbbb=b⟩ | Finite non-commutative monoid with 22 elements | 5 iso |
| 10 | 10273 | ⟨a, b | aa=1, ababa=bbb⟩ | Finite non-commutative monoid with 64 elements | 5 iso |
| 10 | 10301 | ⟨a, b | aa=1, abbbb=bab⟩ | Finite non-commutative monoid with 50 elements | 1 iso |
| 11 | 10767 | ⟨a, b | aaab=bba, bbbb=1⟩ | Finite non-commutative monoid with 148 elements | 2 iso, 1 anti-iso |
| 11 | 10859 | ⟨a, b | aaba=bab, bbbb=1⟩ | Finite non-commutative monoid with 2361964 elements | |
| 11 | 11163 | ⟨a, b | aaaab=a, bbbbb=1⟩ | Finite non-commutative monoid with 80 elements | 1 iso |
| 11 | 11604 | ⟨a, b | baabb=a, bbbbb=1⟩ | Finite non-commutative monoid with 60 elements | 3 iso |
| 11 | 11787 | ⟨a, b | aaab=ba, bbbbb=1⟩ | Finite non-commutative monoid with 1215 elements | |
| 11 | 12157 | ⟨a, b | aaaa=aa, abba=b⟩ | Finite non-commutative monoid with 10 elements | |
| 11 | 12159 | ⟨a, b | aaaa=aa, abbb=b⟩ | Finite non-commutative monoid with 20 elements | |
| 11 | 12181 | ⟨a, b | aaaa=ab, baaa=b⟩ | Finite non-commutative monoid with 10 elements | 1 iso |
| 11 | 12183 | ⟨a, b | aaaa=ab, baab=b⟩ | Finite non-commutative monoid with 14 elements | 3 iso |
| 11 | 12187 | ⟨a, b | aaaa=ab, babb=b⟩ | Finite non-commutative monoid with 18 elements | 2 iso |
| 11 | 12195 | ⟨a, b | aaaa=ab, bbbb=b⟩ | Finite non-commutative monoid with 52 elements | |
| 11 | 12306 | ⟨a, b | aaab=bb, abba=a⟩ | Finite non-commutative monoid with 16 elements | 6 iso |
| 11 | 12322 | ⟨a, b | aaab=bb, bbba=a⟩ | Finite non-commutative monoid with 20 elements | |
| 11 | 12441 | ⟨a, b | aabb=aa, baab=b⟩ | Finite non-commutative monoid with 14 elements | 3 iso |
| 11 | 12499 | ⟨a, b | abab=aa, abba=b⟩ | Finite non-commutative monoid with 14 elements | |
| 11 | 12633 | ⟨a, b | babb=aa, bbbb=b⟩ | Finite non-commutative monoid with 79 elements | |
| 11 | 12897 | ⟨a, b | aab=aaa, baaa=b⟩ | Finite non-commutative monoid with 12 elements | 5 iso |
| 11 | 12981 | ⟨a, b | abb=aaa, baaa=b⟩ | Finite non-commutative monoid with 15 elements | 3 iso |
| 11 | 12985 | ⟨a, b | abb=aaa, baba=b⟩ | Finite non-commutative monoid with 15 elements | 7 iso |
| 11 | 13091 | ⟨a, b | bab=aaa, abba=b⟩ | Finite non-commutative monoid with 21 elements | |
| 11 | 13115 | ⟨a, b | bbb=aaa, aaba=b⟩ | Finite non-commutative monoid with 30 elements | |
| 11 | 13119 | ⟨a, b | bbb=aaa, abba=b⟩ | Finite non-commutative monoid with 75 elements | 1 iso |
| 11 | 13123 | ⟨a, b | aab=aaa, aba=bb⟩ | Finite non-commutative monoid with 15 elements | |
| 11 | 13141 | ⟨a, b | aab=aaa, bbb=ab⟩ | Finite non-commutative monoid with 17 elements | |
| 11 | 13142 | ⟨a, b | aab=aaa, bbb=ba⟩ | Finite non-commutative monoid with 17 elements | |
| 11 | 13151 | ⟨a, b | aba=aaa, baa=bb⟩ | Finite non-commutative monoid with 17 elements | |
| 11 | 13156 | ⟨a, b | aba=aaa, bbb=ab⟩ | Finite non-commutative monoid with 17 elements | |
| 11 | 13191 | ⟨a, b | abb=aaa, bbb=ab⟩ | Finite non-commutative monoid with 15 elements | 1 iso |
| 11 | 13192 | ⟨a, b | abb=aaa, bbb=ba⟩ | Finite non-commutative monoid with 15 elements | |
| 11 | 13218 | ⟨a, b | abb=aba, bbb=aa⟩ | Finite non-commutative monoid with 17 elements | |
| 11 | 13248 | ⟨a, b | bab=aaa, bbb=aa⟩ | Finite non-commutative monoid with 21 elements | |
| 11 | 13251 | ⟨a, b | bab=aab, bbb=aa⟩ | Finite non-commutative monoid with 16 elements | |
| 11 | 13259 | ⟨a, b | bab=aba, bbb=aa⟩ | Finite non-commutative monoid with 16 elements | |
| 11 | 13936 | ⟨a, b | aaab=a, bbbbbb=1⟩ | Finite non-commutative monoid with 78 elements | 1 iso |
| 11 | 14342 | ⟨a, b | aaaa=a, aabba=b⟩ | Finite non-commutative monoid with 25 elements | |
| 11 | 14354 | ⟨a, b | aaaa=a, abbba=b⟩ | Finite non-commutative monoid with 148 elements | |
| 11 | 14356 | ⟨a, b | aaaa=a, abbbb=b⟩ | Finite non-commutative monoid with 40 elements | |
| 11 | 14472 | ⟨a, b | aaab=a, bbbbb=b⟩ | Finite non-commutative monoid with 45 elements | |
| 11 | 14501 | ⟨a, b | aaab=b, abbba=a⟩ | Finite non-commutative monoid with 19 elements | 3 iso |
| 11 | 14519 | ⟨a, b | aaab=b, babbb=a⟩ | Finite non-commutative monoid with 85 elements | 1 anti-iso |
| 11 | 14631 | ⟨a, b | aaba=b, abbbb=a⟩ | Finite non-commutative monoid with 61 elements | 1 iso |
| 11 | 14698 | ⟨a, b | aabb=a, baaaa=b⟩ | Finite non-commutative monoid with 17 elements | 1 iso, 6 anti-iso |
| 11 | 14833 | ⟨a, b | abba=b, aaaaa=a⟩ | Finite non-commutative monoid with 101 elements | |
| 11 | 14843 | ⟨a, b | abba=b, aabab=a⟩ | Finite non-commutative monoid with 7 elements | 1 iso |
| 11 | 14861 | ⟨a, b | abba=b, baaab=a⟩ | Finite non-commutative monoid with 49 elements | |
| 11 | 14869 | ⟨a, b | abba=b, bbabb=a⟩ | Finite non-commutative monoid with 25 elements | 2 iso |
| 11 | 15200 | ⟨a, b | aab=ba, bbbbbb=1⟩ | Finite non-commutative monoid with 384 elements | |
| 11 | 15428 | ⟨a, b | aaa=aa, abbbb=b⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 15488 | ⟨a, b | aaa=ab, babbb=b⟩ | Finite non-commutative monoid with 17 elements | 3 iso |
| 11 | 15504 | ⟨a, b | aaa=ab, bbbbb=b⟩ | Finite non-commutative monoid with 55 elements | |
| 11 | 15514 | ⟨a, b | aaa=bb, aabaa=b⟩ | Finite non-commutative monoid with 27 elements | |
| 11 | 15515 | ⟨a, b | aaa=bb, aabab=a⟩ | Finite non-commutative monoid with 32 elements | |
| 11 | 15526 | ⟨a, b | aaa=bb, ababb=b⟩ | Finite non-commutative monoid with 33 elements | 1 iso |
| 11 | 15757 | ⟨a, b | aab=bb, ababa=a⟩ | Finite non-commutative monoid with 34 elements | |
| 11 | 15797 | ⟨a, b | aab=bb, bbbba=a⟩ | Finite non-commutative monoid with 18 elements | |
| 11 | 15933 | ⟨a, b | aba=bb, baaab=a⟩ | Finite non-commutative monoid with 20 elements | |
| 11 | 15941 | ⟨a, b | aba=bb, bbabb=a⟩ | Finite non-commutative monoid with 26 elements | |
| 11 | 15979 | ⟨a, b | aaa=aa, bbbb=ab⟩ | Finite non-commutative monoid with 30 elements | |
| 11 | 15996 | ⟨a, b | aaa=ab, aabb=bb⟩ | Finite non-commutative monoid with 12 elements | 2 iso |
| 11 | 16012 | ⟨a, b | aaa=ab, abbb=bb⟩ | Finite non-commutative monoid with 13 elements | |
| 11 | 16020 | ⟨a, b | aaa=ab, baab=bb⟩ | Finite non-commutative monoid with 14 elements | 1 iso |
| 11 | 16028 | ⟨a, b | aaa=ab, babb=bb⟩ | Finite non-commutative monoid with 16 elements | |
| 11 | 16032 | ⟨a, b | aaa=ab, bbaa=bb⟩ | Finite non-commutative monoid with 16 elements | |
| 11 | 16036 | ⟨a, b | aaa=ab, bbab=bb⟩ | Finite non-commutative monoid with 19 elements | 1 iso |
| 11 | 16041 | ⟨a, b | aaa=ab, bbbb=aa⟩ | Finite non-commutative monoid with 15 elements | |
| 11 | 16042 | ⟨a, b | aaa=ab, bbbb=ab⟩ | Finite non-commutative monoid with 18 elements | |
| 11 | 16043 | ⟨a, b | aaa=ab, bbbb=ba⟩ | Finite non-commutative monoid with 18 elements | |
| 11 | 16044 | ⟨a, b | aaa=ab, bbbb=bb⟩ | Finite non-commutative monoid with 36 elements | |
| 11 | 16053 | ⟨a, b | aaa=bb, aaba=ab⟩ | Finite non-commutative monoid with 19 elements | |
| 11 | 16057 | ⟨a, b | aaa=bb, aabb=ab⟩ | Finite non-commutative monoid with 12 elements | 2 iso, 2 anti-iso |
| 11 | 16060 | ⟨a, b | aaa=bb, abab=aa⟩ | Finite non-commutative monoid with 16 elements | |
| 11 | 16069 | ⟨a, b | aaa=bb, abbb=ba⟩ | Finite non-commutative monoid with 13 elements | 1 anti-iso |
| 11 | 16079 | ⟨a, b | aaa=bb, bbbb=ab⟩ | Finite non-commutative monoid with 14 elements | |
| 11 | 16104 | ⟨a, b | aab=aa, abab=bb⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 16124 | ⟨a, b | aab=aa, baba=bb⟩ | Finite non-commutative monoid with 20 elements | |
| 11 | 16142 | ⟨a, b | aab=aa, bbbb=ab⟩ | Finite non-commutative monoid with 15 elements | |
| 11 | 16143 | ⟨a, b | aab=aa, bbbb=ba⟩ | Finite non-commutative monoid with 17 elements | |
| 11 | 16148 | ⟨a, b | aab=ab, aaaa=bb⟩ | Finite non-commutative monoid with 11 elements | 1 iso |
| 11 | 16205 | ⟨a, b | aab=ab, bbbb=aa⟩ | Finite non-commutative monoid with 13 elements | 1 iso, 1 anti-iso |
| 11 | 16212 | ⟨a, b | aab=ba, aaaa=bb⟩ | Finite non-commutative monoid with 11 elements | |
| 11 | 16274 | ⟨a, b | aab=bb, aaaa=ab⟩ | Finite non-commutative monoid with 12 elements | 1 iso |
| 11 | 16275 | ⟨a, b | aab=bb, aaaa=ba⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 16293 | ⟨a, b | aab=bb, abab=aa⟩ | Finite non-commutative monoid with 14 elements | |
| 11 | 16313 | ⟨a, b | aab=bb, baba=aa⟩ | Finite non-commutative monoid with 18 elements | |
| 11 | 16339 | ⟨a, b | aba=aa, aaaa=bb⟩ | Finite non-commutative monoid with 20 elements | |
| 11 | 16343 | ⟨a, b | aba=aa, aaab=bb⟩ | Finite non-commutative monoid with 20 elements | |
| 11 | 16371 | ⟨a, b | aba=aa, bbbb=ab⟩ | Finite non-commutative monoid with 16 elements | |
| 11 | 16448 | ⟨a, b | aba=bb, aabb=aa⟩ | Finite non-commutative monoid with 12 elements | 2 iso |
| 11 | 16459 | ⟨a, b | aba=bb, abbb=aa⟩ | Finite non-commutative monoid with 13 elements | 1 iso |
| 11 | 16470 | ⟨a, b | aba=bb, bbbb=aa⟩ | Finite non-commutative monoid with 14 elements | |
| 11 | 16506 | ⟨a, b | aab=ab, bbb=aaa⟩ | Finite non-commutative monoid with 13 elements | 1 iso |
| 11 | 16515 | ⟨a, b | aab=ba, bbb=aaa⟩ | Finite non-commutative monoid with 13 elements | |
| 11 | 16521 | ⟨a, b | aab=bb, bab=aaa⟩ | Finite non-commutative monoid with 17 elements | |
| 11 | 16545 | ⟨a, b | aba=bb, abb=aaa⟩ | Finite non-commutative monoid with 20 elements | |
| 11 | 16549 | ⟨a, b | aba=bb, bab=aaa⟩ | Finite non-commutative monoid with 75 elements | |
| 11 | 16551 | ⟨a, b | aba=bb, bbb=aaa⟩ | Finite non-commutative monoid with 51 elements | |
| 11 | 17127 | ⟨a, b | aaaa=1, ababba=b⟩ | Finite non-commutative monoid with 2361964 elements | |
| 11 | 17139 | ⟨a, b | aaaa=1, abbbbb=b⟩ | Finite non-commutative monoid with 68 elements | 1 iso |
| 11 | 17659 | ⟨a, b | aaaa=1, abbab=ba⟩ | Finite non-commutative monoid with 684 elements | |
| 11 | 17666 | ⟨a, b | aaaa=1, abbbb=ba⟩ | Finite non-commutative monoid with 1024 elements | |
| 11 | 17679 | ⟨a, b | aaaa=1, babbb=ab⟩ | Finite non-commutative monoid with 244 elements | 1 iso |
| 11 | 18415 | ⟨a, b | aab=a, bbbbbbb=1⟩ | Finite non-commutative monoid with 56 elements | 1 iso |
| 11 | 18715 | ⟨a, b | aaa=a, aabbba=b⟩ | Finite non-commutative monoid with 11 elements | |
| 11 | 18727 | ⟨a, b | aaa=a, ababba=b⟩ | Finite non-commutative monoid with 23 elements | |
| 11 | 18737 | ⟨a, b | aaa=a, abbbba=b⟩ | Finite non-commutative monoid with 33 elements | |
| 11 | 18739 | ⟨a, b | aaa=a, abbbbb=b⟩ | Finite non-commutative monoid with 27 elements | |
| 11 | 18959 | ⟨a, b | aab=a, bbbbbb=b⟩ | Finite non-commutative monoid with 36 elements | |
| 11 | 19054 | ⟨a, b | aab=b, babbbb=a⟩ | Finite non-commutative monoid with 31 elements | 1 iso |
| 11 | 19212 | ⟨a, b | aba=b, baaaab=a⟩ | Finite non-commutative monoid with 21 elements | |
| 11 | 19302 | ⟨a, b | aaa=a, bbbbb=ab⟩ | Finite non-commutative monoid with 39 elements | |
| 11 | 19502 | ⟨a, b | aab=a, bbbbb=ba⟩ | Finite non-commutative monoid with 15 elements | 1 anti-iso |
| 11 | 19503 | ⟨a, b | aab=a, bbbbb=bb⟩ | Finite non-commutative monoid with 20 elements | |
| 11 | 19506 | ⟨a, b | aab=b, aaaaa=ba⟩ | Finite non-commutative monoid with 9 elements | |
| 11 | 19552 | ⟨a, b | aab=b, abbaa=aa⟩ | Finite non-commutative monoid with 14 elements | 2 iso |
| 11 | 19624 | ⟨a, b | aab=b, bbbba=aa⟩ | Finite non-commutative monoid with 18 elements | |
| 11 | 19634 | ⟨a, b | aba=a, aaaaa=bb⟩ | Finite non-commutative monoid with 25 elements | |
| 11 | 19638 | ⟨a, b | aba=a, aaaab=bb⟩ | Finite non-commutative monoid with 24 elements | |
| 11 | 19706 | ⟨a, b | aba=b, aaaaa=bb⟩ | Finite non-commutative monoid with 25 elements | |
| 11 | 19756 | ⟨a, b | aba=b, baaab=aa⟩ | Finite non-commutative monoid with 22 elements | |
| 11 | 19766 | ⟨a, b | aba=b, babbb=aa⟩ | Finite non-commutative monoid with 26 elements | |
| 11 | 20046 | ⟨a, b | aab=a, bbbb=bba⟩ | Finite non-commutative monoid with 13 elements | |
| 11 | 20047 | ⟨a, b | aab=a, bbbb=bbb⟩ | Finite non-commutative monoid with 8 elements | |
| 11 | 20052 | ⟨a, b | aab=b, aaaa=baa⟩ | Finite non-commutative monoid with 10 elements | |
| 11 | 20054 | ⟨a, b | aab=b, aaaa=bba⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 20096 | ⟨a, b | aab=b, abba=aaa⟩ | Finite non-commutative monoid with 11 elements | 1 iso |
| 11 | 20112 | ⟨a, b | aab=b, baaa=aaa⟩ | Finite non-commutative monoid with 11 elements | |
| 11 | 20144 | ⟨a, b | aab=b, bbaa=aaa⟩ | Finite non-commutative monoid with 15 elements | |
| 11 | 20251 | ⟨a, b | aba=b, aaaa=abb⟩ | Finite non-commutative monoid with 16 elements | |
| 11 | 20252 | ⟨a, b | aba=b, aaaa=bab⟩ | Finite non-commutative monoid with 24 elements | |
| 11 | 20300 | ⟨a, b | aba=b, baab=aaa⟩ | Finite non-commutative monoid with 23 elements | |
| 11 | 20314 | ⟨a, b | aba=b, bbbb=aaa⟩ | Finite non-commutative monoid with 27 elements | |
| 11 | 20647 | ⟨a, b | ab=aa, bbbbbb=b⟩ | Finite non-commutative monoid with 42 elements | |
| 11 | 20723 | ⟨a, b | ab=aa, aaaaa=bb⟩ | Finite non-commutative monoid with 9 elements | 15 iso |
| 11 | 20787 | ⟨a, b | ab=aa, baaaa=bb⟩ | Finite non-commutative monoid with 12 elements | 7 iso |
| 11 | 20819 | ⟨a, b | ab=aa, bbaaa=bb⟩ | Finite non-commutative monoid with 15 elements | 6 iso |
| 11 | 20844 | ⟨a, b | ab=aa, bbbbb=aa⟩ | Finite non-commutative monoid with 14 elements | 1 iso |
| 11 | 20846 | ⟨a, b | ab=aa, bbbbb=ba⟩ | Finite non-commutative monoid with 14 elements | |
| 11 | 20847 | ⟨a, b | ab=aa, bbbbb=bb⟩ | Finite non-commutative monoid with 30 elements | |
| 11 | 20885 | ⟨a, b | bb=aa, aaaaa=ab⟩ | Finite non-commutative monoid with 11 elements | 7 iso, 8 anti-iso |
| 11 | 20914 | ⟨a, b | bb=aa, ababa=aa⟩ | Finite non-commutative monoid with 18 elements | 1 iso |
| 11 | 20927 | ⟨a, b | ab=aa, aaaa=bbb⟩ | Finite non-commutative monoid with 13 elements | 7 iso |
| 11 | 20991 | ⟨a, b | ab=aa, baaa=bbb⟩ | Finite non-commutative monoid with 13 elements | 3 iso |
| 11 | 21023 | ⟨a, b | ab=aa, bbaa=bbb⟩ | Finite non-commutative monoid with 14 elements | 1 iso |
| 11 | 21039 | ⟨a, b | ab=aa, bbba=bbb⟩ | Finite non-commutative monoid with 16 elements | |
| 11 | 21040 | ⟨a, b | ab=aa, bbbb=aaa⟩ | Finite non-commutative monoid with 14 elements | 3 iso |
| 11 | 21044 | ⟨a, b | ab=aa, bbbb=baa⟩ | Finite non-commutative monoid with 14 elements | 1 iso |
| 11 | 21046 | ⟨a, b | ab=aa, bbbb=bba⟩ | Finite non-commutative monoid with 14 elements | |
| 11 | 21047 | ⟨a, b | ab=aa, bbbb=bbb⟩ | Finite non-commutative monoid with 20 elements | |
| 11 | 21086 | ⟨a, b | bb=aa, aaaa=aba⟩ | Finite non-commutative monoid with 12 elements | 4 iso |
| 11 | 21092 | ⟨a, b | bb=aa, aaab=aba⟩ | Finite non-commutative monoid with 12 elements | 3 iso |
| 11 | 21110 | ⟨a, b | bb=aa, abab=aaa⟩ | Finite non-commutative monoid with 14 elements | 2 anti-iso |
| 11 | 21112 | ⟨a, b | bb=aa, abab=aba⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 21729 | ⟨a, b | aaa=1, ababbba=b⟩ | Finite non-commutative monoid with 10587 elements | |
| 11 | 21731 | ⟨a, b | aaa=1, ababbbb=b⟩ | Finite non-commutative monoid with 111 elements | 1 iso |
| 11 | 21751 | ⟨a, b | aaa=1, abbbbbb=b⟩ | Finite non-commutative monoid with 48 elements | 1 iso |
| 11 | 22279 | ⟨a, b | aaa=1, abbabb=ba⟩ | Finite non-commutative monoid with 174 elements | |
| 11 | 22283 | ⟨a, b | aaa=1, abbbab=ba⟩ | Finite non-commutative monoid with 660 elements | |
| 11 | 22290 | ⟨a, b | aaa=1, abbbbb=ba⟩ | Finite non-commutative monoid with 375 elements | |
| 11 | 22315 | ⟨a, b | aaa=1, babbbb=ab⟩ | Finite non-commutative monoid with 255 elements | 1 anti-iso |
| 11 | 24147 | ⟨a, b | aa=a, abbbbbb=b⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 24660 | ⟨a, b | aa=a, ababab=bb⟩ | Finite non-commutative monoid with 16 elements | |
| 11 | 24722 | ⟨a, b | aa=a, bbbbbb=ab⟩ | Finite non-commutative monoid with 22 elements | |
| 11 | 24991 | ⟨a, b | ab=a, baaaaa=bb⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 25055 | ⟨a, b | ab=a, bbaaaa=bb⟩ | Finite non-commutative monoid with 14 elements | |
| 11 | 25114 | ⟨a, b | ab=a, bbbbbb=ba⟩ | Finite non-commutative monoid with 8 elements | |
| 11 | 25539 | ⟨a, b | ab=a, baaaa=bbb⟩ | Finite non-commutative monoid with 11 elements | |
| 11 | 25603 | ⟨a, b | ab=a, bbaaa=bbb⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 25635 | ⟨a, b | ab=a, bbbaa=bbb⟩ | Finite non-commutative monoid with 11 elements | |
| 11 | 25656 | ⟨a, b | ab=a, bbbbb=baa⟩ | Finite non-commutative monoid with 9 elements | |
| 11 | 25658 | ⟨a, b | ab=a, bbbbb=bba⟩ | Finite non-commutative monoid with 8 elements | |
| 11 | 25905 | ⟨a, b | ab=a, bbbb=baaa⟩ | Finite non-commutative monoid with 10 elements | |
| 11 | 25909 | ⟨a, b | ab=a, bbbb=bbaa⟩ | Finite non-commutative monoid with 10 elements | |
| 11 | 25911 | ⟨a, b | ab=a, bbbb=bbba⟩ | Finite non-commutative monoid with 8 elements | |
| 11 | 26599 | ⟨a, b | aa=1, ababbbba=b⟩ | Finite non-commutative monoid with 138 elements | 2 iso, 1 anti-iso |
| 11 | 26601 | ⟨a, b | aa=1, ababbbbb=b⟩ | Finite non-commutative monoid with 62 elements | 2 iso, 1 anti-iso |
| 11 | 26619 | ⟨a, b | aa=1, abbabbba=b⟩ | Finite non-commutative monoid with 74 elements | 3 iso |
| 11 | 26637 | ⟨a, b | aa=1, abbbbbba=b⟩ | Finite non-commutative monoid with 72 elements | 2 iso |
| 11 | 26639 | ⟨a, b | aa=1, abbbbbbb=b⟩ | Finite non-commutative monoid with 26 elements | 1 iso |
| 11 | 27686 | ⟨a, b | aa=1, abbbba=bab⟩ | Finite non-commutative monoid with 500 elements | 2 iso |
| 11 | 27693 | ⟨a, b | aa=1, abbbbb=bab⟩ | Finite non-commutative monoid with 82 elements | 1 iso |