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 | 3 |
| 1 | 2 |
| 2 | 13 |
| 3 | 5 |
| 4 | 59 |
| 5 | 751 |
| 6 | 1237 |
| 7 | 6053 |
| 8 | 10427 |
| 9 | 36671 |
| 10 | 1532579 |
| 11 | 351599 |
| 12 | 356989 |
| 13 | 12048691 |
| 14 | 105931211 |
| 15 | 96365273 |
| 16 | 190612867 |
| 17 | 18425983 |
| 18 | 1014695321 |
| 19 | 8763105101 |
| 20 | 20385719771 |
| 21 | 7508555437 |
| 22 | 97094976593 |
| 23 | 1911292838383 |
| 24 | 22999364895631 |
| 25 | 46158586887073 |
| 26 | 6373306898393 |