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) |
|---|---|
| 0 | 2 |
| 1 | 2929 |
| 2 | 41459 |
| 3 | 2352527 |
| 4 | 144937 |
| 5 | 1055 |
| 6 | 1829903 |
| 7 | 7316185805 |
| 8 | 114491 |
| 9 | 3146746271 |
| 10 | 5028467 |
| 11 | 20299 |
| 12 | 69609309001 |
| 13 | 129433 |
| 14 | 15307006153 |
| 15 | 2149705 |
| 16 | 66469 |
| 17 | 559182815 |
| 18 | 18429503 |
| 19 | 4529951 |
| 20 | 7094711 |
| 21 | 83591212702535 |
| 22 | 1251548749 |
| 23 | 38088889 |