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) |
|---|---|
| 3 | 252416863614 |
| 4 | 10949070196804 |
| 5 | 8719491322 |
| 6 | 3873 |
| 7 | 5551 |
| 8 | 6496 |
| 9 | 9179 |
| 10 | 15681 |
| 11 | 20978 |
| 12 | 26062 |
| 13 | 28301 |
| 14 | 35936 |
| 15 | 50560 |
| 16 | 55330 |
| 17 | 66877 |
| 18 | 88738 |
| 19 | 94465 |
| 20 | 111840 |
| 21 | 128860 |
| 22 | 177659 |
| 23 | 179929 |
| 24 | 230580 |
| 25 | 261107 |
| 26 | 275220 |
| 27 | 300070 |
| 28 | 361843 |
| 29 | 395338 |
| 30 | 457169 |
| 31 | 446645 |
| 32 | 505470 |
| 33 | 560168 |