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 | 2 |
| 6 | 3 |
| 7 | 4 |
| 8 | 5 |
| 9 | 11 |
| 10 | 18 |
| 11 | 26 |
| 12 | 35 |
| 13 | 80 |
| 14 | 136 |
| 15 | 204 |
| 16 | 285 |
| 17 | 665 |
| 18 | 1155 |
| 19 | 1771 |
| 20 | 2530 |
| 21 | 5980 |
| 22 | 10530 |
| 23 | 16380 |
| 24 | 23751 |
| 25 | 56637 |
| 26 | 100688 |
| 27 | 158224 |
| 28 | 231880 |
| 29 | 556512 |
| 30 | 996336 |
| 31 | 1577532 |
| 32 | 2330445 |
| 33 | 5620485 |
| 34 | 10116873 |
| 35 | 16112057 |
| 36 | 23950355 |
| 37 | 57985070 |
| 38 | 104819165 |
| 39 | 167710664 |
| 40 | 250543370 |
| 41 | 608462470 |