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 | 72 |
| 2 | 1061 |
| 3 | 7504 |
| 4 | 34415 |
| 5 | 119364 |
| 6 | 341011 |
| 7 | 845358 |
| 8 | 1878315 |
| 9 | 3826222 |
| 10 | 7263401 |
| 11 | 13006830 |
| 12 | 22184249 |
| 13 | 36304264 |
| 14 | 57333585 |
| 15 | 87793296 |
| 16 | 130863267 |
| 17 | 190475904 |
| 18 | 271446215 |
| 19 | 379605094 |
| 20 | 521929211 |
| 21 | 706693318 |
| 22 | 943642869 |
| 23 | 1244141718 |
| 24 | 1621385877 |