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 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 7 |
| 7 | 31 |
| 8 | 24 |
| 9 | 26 |
| 10 | 36 |
| 11 | 401 |
| 12 | 994 |
| 13 | 8541 |
| 14 | 9369 |
| 15 | 90481 |
| 16 | 803101 |
| 17 | 122309 |
| 18 | 918349 |
| 19 | 6691411 |
| 20 | 1892158 |
| 21 | 8837259 |
| 22 | 38317811 |
| 23 | 15086655 |
| 24 | 45813926 |
| 25 | 46917727 |
| 26 | 407993841 |
| 27 | 224348715 |
| 28 | 25411507 |
| 29 | 629951893 |
| 30 | 2286023711 |
| 31 | 6507846892 |
| 32 | 9250302919 |