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 | 5 |
| 3 | 32 |
| 4 | 186 |
| 5 | 132 |
| 6 | 10 |
| 7 | 56 |
| 8 | 2814 |
| 9 | 17834 |
| 10 | 27324 |
| 11 | 11364 |
| 12 | 1078 |
| 13 | 10 |
| 14 | 48 |
| 15 | 17988 |
| 16 | 494720 |
| 17 | 3324209 |
| 18 | 7526484 |
| 19 | 6382271 |
| 20 | 2004296 |
| 21 | 203799 |
| 22 | 4580 |
| 23 | 5 |
| 24 | 16 |
| 25 | 72210 |
| 26 | 7108338 |
| 27 | 146595355 |
| 28 | 1025458635 |
| 29 | 2957655028 |
| 30 | 3828236468 |