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 | 66 |
| 3 | 860 |
| 4 | 5750 |
| 5 | 26265 |
| 6 | 93436 |
| 7 | 278256 |
| 8 | 725220 |
| 9 | 1703625 |
| 10 | 3682030 |
| 11 | 7431996 |
| 12 | 14167946 |
| 13 | 25730705 |
| 14 | 44823000 |
| 15 | 75305920 |
| 16 | 122566056 |
| 17 | 193963761 |
| 18 | 299373690 |
| 19 | 451829500 |
| 20 | 668285310 |
| 21 | 970507241 |
| 22 | 1386109076 |
| 23 | 1949746800 |
| 24 | 2704487500 |