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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 4 |
| 6 | 9 |
| 7 | 12 |
| 8 | 26 |
| 9 | 48 |
| 10 | 90 |
| 11 | 172 |
| 12 | 348 |
| 13 | 664 |
| 14 | 1349 |
| 15 | 2680 |
| 16 | 5438 |
| 17 | 10976 |
| 18 | 22510 |
| 19 | 45900 |
| 20 | 94700 |
| 21 | 195032 |
| 22 | 404442 |
| 23 | 838824 |
| 24 | 1748308 |
| 25 | 3646368 |
| 26 | 7632628 |
| 27 | 15994232 |
| 28 | 33606168 |
| 29 | 70699504 |
| 30 | 149050669 |
| 31 | 314625264 |
| 32 | 665280246 |
| 33 | 1408436672 |
| 34 | 2986069782 |
| 35 | 6337988876 |