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) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 4 |
| 6 | 11 |
| 7 | 17 |
| 8 | 46 |
| 9 | 78 |
| 10 | 203 |
| 11 | 372 |
| 12 | 946 |
| 13 | 1830 |
| 14 | 4561 |
| 15 | 9207 |
| 16 | 22609 |
| 17 | 47166 |
| 18 | 114514 |
| 19 | 245154 |
| 20 | 590345 |
| 21 | 1289950 |
| 22 | 3087959 |
| 23 | 6858746 |
| 24 | 16352074 |
| 25 | 36800928 |
| 26 | 87502317 |
| 27 | 199036637 |
| 28 | 472483088 |
| 29 | 1084108363 |
| 30 | 2571356964 |
| 31 | 5942191918 |
| 32 | 14090541799 |
| 33 | 32754720101 |
| 34 | 77684033014 |
| 35 | 181473276607 |