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 | 2 |
| 2 | 50 |
| 3 | 842 |
| 4 | 908 |
| 5 | 13610 |
| 6 | 13868 |
| 7 | 14642 |
| 8 | 14900 |
| 9 | 15416 |
| 10 | 218282 |
| 11 | 219308 |
| 12 | 222386 |
| 13 | 223412 |
| 14 | 225464 |
| 15 | 234698 |
| 16 | 235724 |
| 17 | 238802 |
| 18 | 239828 |
| 19 | 241880 |
| 20 | 247010 |
| 21 | 248036 |
| 22 | 250088 |
| 23 | 254192 |
| 24 | 3494570 |
| 25 | 3498668 |
| 26 | 3510962 |
| 27 | 3515060 |
| 28 | 3523256 |
| 29 | 3560138 |
| 30 | 3564236 |
| 31 | 3576530 |