This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 36 |
| 4 | 120 |
| 5 | 1296 |
| 6 | 1260 |
| 7 | 46656 |
| 8 | 7560 |
| 9 | 44100 |
| 10 | 45360 |
| 11 | 60466176 |
| 12 | 110880 |
| 13 | 2176782336 |
| 14 | 1632960 |
| 15 | 1587600 |
| 16 | 1081080 |
| 17 | 2821109907456 |
| 18 | 3880800 |
| 19 | 101559956668416 |
| 20 | 6486480 |
| 21 | 57153600 |
| 22 | 2116316160 |
| 23 | 131621703842267136 |
| 24 | 21621600 |
| 25 | 1944810000 |
| 26 | 76187381760 |