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 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 8 |
| 6 | 14 |
| 7 | 26 |
| 8 | 51 |
| 9 | 103 |
| 10 | 216 |
| 11 | 463 |
| 12 | 1011 |
| 13 | 2237 |
| 14 | 5007 |
| 15 | 11306 |
| 16 | 25732 |
| 17 | 58941 |
| 18 | 135792 |
| 19 | 314410 |
| 20 | 731258 |
| 21 | 1707554 |
| 22 | 4001778 |
| 23 | 9409162 |
| 24 | 22189556 |
| 25 | 52472676 |
| 26 | 124397323 |
| 27 | 295594279 |
| 28 | 703904947 |
| 29 | 1679567427 |
| 30 | 4015010504 |
| 31 | 9614519152 |
| 32 | 23060649590 |
| 33 | 55395487476 |