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 | 0 |
| 2 | 184 |
| 3 | 2008 |
| 4 | 5332 |
| 5 | 19144 |
| 6 | 55360 |
| 7 | 146488 |
| 8 | 175528 |
| 9 | 520372 |
| 10 | 1502344 |
| 11 | 1589464 |
| 12 | 3975844 |
| 13 | 4749760 |
| 14 | 14072968 |
| 15 | 14334328 |
| 16 | 40625344 |
| 17 | 42947092 |
| 18 | 107527864 |
| 19 | 128312344 |
| 20 | 129096424 |
| 21 | 380156356 |
| 22 | 387121600 |
| 23 | 1097424568 |
| 24 | 1159778008 |