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 | 6 |
| 2 | 24 |
| 3 | 120 |
| 4 | 336 |
| 5 | 1320 |
| 6 | 2184 |
| 7 | 4896 |
| 8 | 6840 |
| 9 | 12144 |
| 10 | 24360 |
| 11 | 29760 |
| 12 | 50616 |
| 13 | 68880 |
| 14 | 79464 |
| 15 | 103776 |
| 16 | 148824 |
| 17 | 205320 |
| 18 | 226920 |
| 19 | 300696 |
| 20 | 357840 |
| 21 | 388944 |
| 22 | 492960 |
| 23 | 571704 |
| 24 | 704880 |
| 25 | 912576 |
| 26 | 1030200 |
| 27 | 1092624 |
| 28 | 1224936 |
| 29 | 1294920 |
| 30 | 1442784 |
| 31 | 2048256 |
| 32 | 2247960 |
| 33 | 2571216 |
| 34 | 2685480 |
| 35 | 3307800 |