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 | 3 |
| 6 | 3 |
| 7 | 8 |
| 8 | 12 |
| 9 | 20 |
| 10 | 35 |
| 11 | 62 |
| 12 | 106 |
| 13 | 189 |
| 14 | 343 |
| 15 | 603 |
| 16 | 1130 |
| 17 | 2055 |
| 18 | 3860 |
| 19 | 7154 |
| 20 | 13562 |
| 21 | 25463 |
| 22 | 48607 |
| 23 | 92204 |
| 24 | 176646 |
| 25 | 337587 |
| 26 | 649151 |
| 27 | 1246819 |
| 28 | 2404519 |
| 29 | 4636389 |
| 30 | 8963497 |
| 31 | 17334800 |
| 32 | 33585928 |
| 33 | 65107935 |
| 34 | 126385919 |
| 35 | 245492221 |
| 36 | 477345359 |
| 37 | 928772649 |
| 38 | 1808662015 |
| 39 | 3524337599 |
| 40 | 6872457828 |
| 41 | 13409202675 |
| 42 | 26179870365 |