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 | 1 |
| 3 | 3 |
| 4 | 5 |
| 5 | 15 |
| 6 | 29 |
| 7 | 47 |
| 8 | 101 |
| 9 | 199 |
| 10 | 413 |
| 11 | 847 |
| 12 | 1621 |
| 13 | 3255 |
| 14 | 6541 |
| 15 | 13087 |
| 16 | 26373 |
| 17 | 52423 |
| 18 | 104637 |
| 19 | 209711 |
| 20 | 419253 |
| 21 | 839511 |
| 22 | 1678317 |
| 23 | 3353919 |
| 24 | 6710629 |
| 25 | 13421287 |
| 26 | 26845213 |
| 27 | 53693007 |
| 28 | 107366933 |
| 29 | 214742391 |
| 30 | 429498701 |
| 31 | 858994271 |
| 32 | 1718023109 |
| 33 | 3435955975 |
| 34 | 6871883645 |