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 | 2 |
| 3 | 12 |
| 4 | 56 |
| 5 | 248 |
| 6 | 12192 |
| 7 | 28896 |
| 8 | 60960 |
| 9 | 61344 |
| 10 | 66528 |
| 11 | 86304 |
| 12 | 94944 |
| 13 | 129504 |
| 14 | 133920 |
| 15 | 140448 |
| 16 | 182880 |
| 17 | 201924 |
| 18 | 207264 |
| 19 | 242316 |
| 20 | 282720 |
| 21 | 408672 |
| 22 | 416640 |
| 23 | 426720 |
| 24 | 429408 |
| 25 | 604128 |
| 26 | 664608 |
| 27 | 671760 |
| 28 | 776736 |
| 29 | 792480 |
| 30 | 854496 |
| 31 | 862752 |
| 32 | 906528 |