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) |
|---|---|
| 0 | 0 |
| 1 | 24 |
| 2 | 168 |
| 3 | 540 |
| 4 | 1248 |
| 5 | 2400 |
| 6 | 4104 |
| 7 | 6468 |
| 8 | 9600 |
| 9 | 13608 |
| 10 | 18600 |
| 11 | 24684 |
| 12 | 31968 |
| 13 | 40560 |
| 14 | 50568 |
| 15 | 62100 |
| 16 | 75264 |
| 17 | 90168 |
| 18 | 106920 |
| 19 | 125628 |
| 20 | 146400 |
| 21 | 169344 |
| 22 | 194568 |
| 23 | 222180 |
| 24 | 252288 |
| 25 | 285000 |
| 26 | 320424 |
| 27 | 358668 |
| 28 | 399840 |
| 29 | 444048 |
| 30 | 491400 |
| 31 | 542004 |
| 32 | 595968 |
| 33 | 653400 |
| 34 | 714408 |
| 35 | 779100 |
| 36 | 847584 |