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 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 1 |
| 6 | 6 |
| 7 | 1 |
| 8 | 44 |
| 9 | 6 |
| 10 | 519 |
| 11 | 1 |
| 12 | 8363 |
| 13 | 1 |
| 14 | 163357 |
| 15 | 9427 |
| 16 | 3988615 |
| 17 | 1 |
| 18 | 117148318 |
| 19 | 1 |
| 20 | 3986012464 |
| 21 | 84012192 |
| 22 | 157783127674 |
| 23 | 1 |
| 24 | 7143740399835 |
| 25 | 248686 |
| 26 | 364166073164915 |
| 27 | 2479642897110 |
| 28 | 20827974319925302 |
| 29 | 1 |
| 30 | 1324585467847848929 |
| 31 | 1 |
| 32 | 92917902002561639120 |
| 33 | 190678639438170503 |