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 | 2 |
| 2 | 3 |
| 3 | 8 |
| 4 | 11 |
| 5 | 19 |
| 6 | 49 |
| 7 | 68 |
| 8 | 117 |
| 9 | 302 |
| 10 | 419 |
| 11 | 721 |
| 12 | 1861 |
| 13 | 2582 |
| 14 | 4443 |
| 15 | 11468 |
| 16 | 15911 |
| 17 | 27379 |
| 18 | 70669 |
| 19 | 98048 |
| 20 | 168717 |
| 21 | 435482 |
| 22 | 604199 |
| 23 | 1039681 |
| 24 | 2683561 |
| 25 | 3723242 |
| 26 | 6406803 |
| 27 | 16536848 |
| 28 | 22943651 |
| 29 | 39480499 |
| 30 | 101904649 |
| 31 | 141385148 |
| 32 | 243289797 |
| 33 | 627964742 |
| 34 | 871254539 |
| 35 | 1499219281 |
| 36 | 3869693101 |
| 37 | 5368912382 |
| 38 | 9238605483 |