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 | 191 |
| 2 | 853 |
| 3 | 7537 |
| 4 | 17587 |
| 5 | 71369 |
| 6 | 363749 |
| 7 | 574621 |
| 8 | 1895149 |
| 9 | 3744761 |
| 10 | 5123791 |
| 11 | 9167525 |
| 12 | 19974397 |
| 13 | 39789335 |
| 14 | 49243141 |
| 15 | 89502667 |
| 16 | 129269281 |
| 17 | 154098649 |
| 18 | 253600309 |
| 19 | 345942995 |
| 20 | 535842121 |
| 21 | 917491105 |
| 22 | 1180249901 |
| 23 | 1333475377 |