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 | 8 |
| 2 | 240 |
| 3 | 1944 |
| 4 | 8960 |
| 5 | 30000 |
| 6 | 81648 |
| 7 | 192080 |
| 8 | 405504 |
| 9 | 787320 |
| 10 | 1430000 |
| 11 | 2459688 |
| 12 | 4043520 |
| 13 | 6397664 |
| 14 | 9796080 |
| 15 | 14580000 |
| 16 | 21168128 |
| 17 | 30067560 |
| 18 | 41885424 |
| 19 | 57341240 |
| 20 | 77280000 |
| 21 | 102685968 |
| 22 | 134697200 |
| 23 | 174620784 |
| 24 | 223948800 |
| 25 | 284375000 |
| 26 | 357812208 |