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 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 7 |
| 6 | 1 |
| 7 | 11 |
| 8 | 13 |
| 9 | 11 |
| 10 | 11 |
| 11 | 23 |
| 12 | 23 |
| 13 | 607 |
| 14 | 251 |
| 15 | 251 |
| 16 | 25 |
| 17 | 97 |
| 18 | 97 |
| 19 | 3767 |
| 20 | 3767 |
| 21 | 3767 |
| 22 | 457 |
| 23 | 24319 |
| 24 | 24319 |
| 25 | 7951 |
| 26 | 4261 |
| 27 | 13703 |
| 28 | 13703 |
| 29 | 872843 |
| 30 | 872843 |
| 31 | 17424097 |
| 32 | 13828799 |
| 33 | 902339 |
| 34 | 7850449 |
| 35 | 7850449 |
| 36 | 7850449 |
| 37 | 1526171 |
| 38 | 68185267 |
| 39 | 3429883 |
| 40 | 3429883 |