Infinite non-Abelian groups
92 unique, 686 total
| Σ | # | Presentation | Properties | Description | φ |
| 4 | 14 | ⟨a, b | abba=1⟩ | Grp Inf | | 14 |
| 5 | 30 | ⟨a, b | aabba=1⟩ | Grp Inf | | 40 |
| 6 | 60 | ⟨a, b | aaabba=1⟩ | Grp Inf | | 19 |
| 6 | 67 | ⟨a, b | aabbba=1⟩ | Grp Inf | | 8 |
| 6 | 69 | ⟨a, b | abaaba=1⟩ | Grp Inf | ℤ2 ∗ ℤ | 5 |
| 6 | 71 | ⟨a, b | ababba=1⟩ | Grp Inf | | 7 |
| 7 | 131 | ⟨a, b | aaaabba=1⟩ | Grp Inf | | 11 |
| 7 | 139 | ⟨a, b | aaabbba=1⟩ | Grp Inf | | 16 |
| 7 | 145 | ⟨a, b | aababba=1⟩ | Grp Inf | | 44 |
| 8 | 275 | ⟨a, b | aaaaabba=1⟩ | Grp Inf | | 7 |
| 8 | 283 | ⟨a, b | aaaabbba=1⟩ | Grp Inf | | 7 |
| 8 | 290 | ⟨a, b | aaababba=1⟩ | Grp Inf | | 19 |
| 8 | 298 | ⟨a, b | aaabbbba=1⟩ | Grp Inf | | 1 |
| 8 | 310 | ⟨a, b | aababbba=1⟩ | Grp Inf | | 2 |
| 8 | 315 | ⟨a, b | aabbabba=1⟩ | Grp Inf | | 2 |
| 8 | 331 | ⟨a, b | abababba=1⟩ | Grp Inf | | 1 |
| 8 | 333 | ⟨a, b | ababbaba=1⟩ | Grp Inf | | 1 |
| 8 | 336 | ⟨a, b | abbaabba=1⟩ | Grp Inf | | |
| 9 | 601 | ⟨a, b | aaaaaabba=1⟩ | Grp Inf | | 8 |
| 9 | 609 | ⟨a, b | aaaaabbba=1⟩ | Grp Inf | | 3 |
| 9 | 617 | ⟨a, b | aaaababba=1⟩ | Grp Inf | | 5 |
| 9 | 625 | ⟨a, b | aaaabbbba=1⟩ | Grp Inf | | 3 |
| 9 | 631 | ⟨a, b | aaabaabba=1⟩ | Grp Inf | | 5 |
| 9 | 639 | ⟨a, b | aaababbba=1⟩ | Grp Inf | | 5 |
| 9 | 645 | ⟨a, b | aaabbabba=1⟩ | Grp Inf | | 8 |
| 9 | 664 | ⟨a, b | aabaabbba=1⟩ | Grp Inf | | 13 |
| 9 | 670 | ⟨a, b | aabababba=1⟩ | Grp Inf | | 18 |
| 9 | 672 | ⟨a, b | aababbaba=1⟩ | Grp Inf | | 10 |
| 9 | 678 | ⟨a, b | aabbaaabb=1⟩ | Grp Inf | | 12 |
| 9 | 704 | ⟨a, b | abaabaaba=1⟩ | Grp Inf | ℤ3 ∗ ℤ | |
| 10 | 1281 | ⟨a, b | aaaaaaabba=1⟩ | Grp Inf | | 4 |
| 10 | 1289 | ⟨a, b | aaaaaabbba=1⟩ | Grp Inf | | 3 |
| 10 | 1297 | ⟨a, b | aaaaababba=1⟩ | Grp Inf | | 6 |
| 10 | 1305 | ⟨a, b | aaaaabbbba=1⟩ | Grp Inf | | 4 |
| 10 | 1312 | ⟨a, b | aaaabaabba=1⟩ | Grp Inf | | 14 |
| 10 | 1320 | ⟨a, b | aaaababbba=1⟩ | Grp Inf | | 6 |
| 10 | 1328 | ⟨a, b | aaaabbabba=1⟩ | Grp Inf | | 3 |
| 10 | 1336 | ⟨a, b | aaaabbbbba=1⟩ | Grp Inf | | 1 |
| 10 | 1350 | ⟨a, b | aaabaabbba=1⟩ | Grp Inf | | 6 |
| 10 | 1356 | ⟨a, b | aaabababba=1⟩ | Grp Inf | | 5 |
| 10 | 1360 | ⟨a, b | aaababbaba=1⟩ | Grp Inf | | 3 |
| 10 | 1364 | ⟨a, b | aaababbbba=1⟩ | Grp Inf | | 3 |
| 10 | 1370 | ⟨a, b | aaabbaabba=1⟩ | Grp Inf | | 4 |
| 10 | 1377 | ⟨a, b | aaabbabbba=1⟩ | Grp Inf | | 6 |
| 10 | 1378 | ⟨a, b | aaabbbaaab=1⟩ | Grp Inf | | 3 |
| 10 | 1408 | ⟨a, b | aabaababba=1⟩ | Grp Inf | | 5 |
| 10 | 1410 | ⟨a, b | aabaabbaba=1⟩ | Grp Inf | | 5 |
| 10 | 1419 | ⟨a, b | aababaabba=1⟩ | Grp Inf | | 5 |
| 10 | 1425 | ⟨a, b | aabababbba=1⟩ | Grp Inf | | 2 |
| 10 | 1431 | ⟨a, b | aababbabba=1⟩ | Grp Inf | | 6 |
| 10 | 1433 | ⟨a, b | aababbbaba=1⟩ | Grp Inf | | 1 |
| 10 | 1441 | ⟨a, b | aabbaaabba=1⟩ | Grp Inf | | 1 |
| 10 | 1446 | ⟨a, b | aabbaabbba=1⟩ | Grp Inf | | 3 |
| 10 | 1451 | ⟨a, b | aabbababba=1⟩ | Grp Inf | | 4 |
| 10 | 1513 | ⟨a, b | ababababba=1⟩ | Grp Inf | | 2 |
| 10 | 1515 | ⟨a, b | abababbaba=1⟩ | Grp Inf | | 2 |
| 10 | 1519 | ⟨a, b | ababbaabba=1⟩ | Grp Inf | | 2 |
| 11 | 2783 | ⟨a, b | aaaaaaaabba=1⟩ | Grp Inf | | 4 |
| 11 | 2791 | ⟨a, b | aaaaaaabbba=1⟩ | Grp Inf | | 4 |
| 11 | 2799 | ⟨a, b | aaaaaababba=1⟩ | Grp Inf | | 7 |
| 11 | 2807 | ⟨a, b | aaaaaabbbba=1⟩ | Grp Inf | | 4 |
| 11 | 2815 | ⟨a, b | aaaaabaabba=1⟩ | Grp Inf | | 7 |
| 11 | 2823 | ⟨a, b | aaaaababbba=1⟩ | Grp Inf | | 7 |
| 11 | 2831 | ⟨a, b | aaaaabbabba=1⟩ | Grp Inf | | 4 |
| 11 | 2839 | ⟨a, b | aaaaabbbbba=1⟩ | Grp Inf | | 4 |
| 11 | 2853 | ⟨a, b | aaaabaabbba=1⟩ | Grp Inf | | 7 |
| 11 | 2861 | ⟨a, b | aaaabababba=1⟩ | Grp Inf | | 6 |
| 11 | 2865 | ⟨a, b | aaaababbaba=1⟩ | Grp Inf | | 3 |
| 11 | 2869 | ⟨a, b | aaaababbbba=1⟩ | Grp Inf | | 7 |
| 11 | 2875 | ⟨a, b | aaaabbaabba=1⟩ | Grp Inf | | 4 |
| 11 | 2883 | ⟨a, b | aaaabbabbba=1⟩ | Grp Inf | | 7 |
| 11 | 2912 | ⟨a, b | aaabaaabbba=1⟩ | Grp Inf | | 7 |
| 11 | 2918 | ⟨a, b | aaabaababba=1⟩ | Grp Inf | | 6 |
| 11 | 2922 | ⟨a, b | aaabaabbaba=1⟩ | Grp Inf | | 6 |
| 11 | 2926 | ⟨a, b | aaabaabbbba=1⟩ | Grp Inf | | 7 |
| 11 | 2932 | ⟨a, b | aaababaabba=1⟩ | Grp Inf | | 6 |
| 11 | 2940 | ⟨a, b | aaabababbba=1⟩ | Grp Inf | | 6 |
| 11 | 2946 | ⟨a, b | aaababbabba=1⟩ | Grp Inf | | 7 |
| 11 | 2949 | ⟨a, b | aaababbbaba=1⟩ | Grp Inf | | 3 |
| 11 | 2956 | ⟨a, b | aaabbaaaabb=1⟩ | Grp Inf | | 4 |
| 11 | 2966 | ⟨a, b | aaabbaabbba=1⟩ | Grp Inf | | 7 |
| 11 | 2972 | ⟨a, b | aaabbababba=1⟩ | Grp Inf | | 3 |
| 11 | 2982 | ⟨a, b | aaabbbaaabb=1⟩ | Grp Inf | | 4 |
| 11 | 2991 | ⟨a, b | aaabbbabbba=1⟩ | Grp Inf | | 4 |
| 11 | 3040 | ⟨a, b | aabaababbba=1⟩ | Grp Inf | | 6 |
| 11 | 3046 | ⟨a, b | aabaabbabba=1⟩ | Grp Inf | | 7 |
| 11 | 3048 | ⟨a, b | aabaabbbaba=1⟩ | Grp Inf | | 6 |
| 11 | 3062 | ⟨a, b | aababaabbba=1⟩ | Grp Inf | | 6 |
| 11 | 3068 | ⟨a, b | aababababba=1⟩ | Grp Inf | | 5 |
| 11 | 3070 | ⟨a, b | aabababbaba=1⟩ | Grp Inf | | 5 |
| 11 | 3078 | ⟨a, b | aababbaabba=1⟩ | Grp Inf | | 6 |
| 11 | 3109 | ⟨a, b | aabbaababba=1⟩ | Grp Inf | | 5 |