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 | 64 |
| 3 | 365 |
| 4 | 2080 |
| 5 | 3907 |
| 6 | 23360 |
| 7 | 19609 |
| 8 | 66592 |
| 9 | 88817 |
| 10 | 250048 |
| 11 | 177157 |
| 12 | 759200 |
| 13 | 402235 |
| 14 | 1254976 |
| 15 | 1426055 |
| 16 | 2130976 |
| 17 | 1508599 |
| 18 | 5684288 |
| 19 | 2613661 |
| 20 | 8126560 |
| 21 | 7157285 |
| 22 | 11338048 |
| 23 | 6728905 |
| 24 | 24306080 |
| 25 | 12210157 |
| 26 | 25743040 |
| 27 | 21582653 |
| 28 | 40786720 |
| 29 | 21243691 |
| 30 | 91267520 |
| 31 | 29583457 |