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 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 8 |
| 6 | 14 |
| 7 | 24 |
| 8 | 43 |
| 9 | 78 |
| 10 | 144 |
| 11 | 269 |
| 12 | 509 |
| 13 | 971 |
| 14 | 1868 |
| 15 | 3618 |
| 16 | 7049 |
| 17 | 13805 |
| 18 | 27162 |
| 19 | 53661 |
| 20 | 106405 |
| 21 | 211697 |
| 22 | 422458 |
| 23 | 845386 |
| 24 | 1696017 |
| 25 | 3410522 |
| 26 | 6873060 |
| 27 | 13878721 |
| 28 | 28077439 |
| 29 | 56900936 |
| 30 | 115501012 |
| 31 | 234807488 |
| 32 | 478032437 |
| 33 | 974507543 |
| 34 | 1989123814 |