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 | 0 |
| 4 | 2 |
| 5 | 2 |
| 6 | 4 |
| 7 | 9 |
| 8 | 13 |
| 9 | 28 |
| 10 | 46 |
| 11 | 84 |
| 12 | 146 |
| 13 | 252 |
| 14 | 433 |
| 15 | 736 |
| 16 | 1242 |
| 17 | 2087 |
| 18 | 3482 |
| 19 | 5791 |
| 20 | 9587 |
| 21 | 15823 |
| 22 | 26038 |
| 23 | 42743 |
| 24 | 70016 |
| 25 | 114485 |
| 26 | 186903 |
| 27 | 304728 |
| 28 | 496260 |
| 29 | 807395 |
| 30 | 1312504 |
| 31 | 2132102 |
| 32 | 3461407 |
| 33 | 5616609 |
| 34 | 9109732 |