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 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 8 |
| 8 | 29 |
| 9 | 85 |
| 10 | 211 |
| 11 | 463 |
| 12 | 931 |
| 13 | 1795 |
| 14 | 3550 |
| 15 | 7736 |
| 16 | 18929 |
| 17 | 49505 |
| 18 | 130000 |
| 19 | 330430 |
| 20 | 804271 |
| 21 | 1885675 |
| 22 | 4327555 |
| 23 | 9929515 |
| 24 | 23224435 |
| 25 | 55907251 |
| 26 | 138016906 |
| 27 | 345107296 |
| 28 | 862546231 |
| 29 | 2136402451 |
| 30 | 5231163232 |
| 31 | 12697101118 |
| 32 | 30723857209 |
| 33 | 74569942745 |