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) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 5 |
| 8 | 11 |
| 9 | 21 |
| 10 | 37 |
| 11 | 66 |
| 12 | 127 |
| 13 | 261 |
| 14 | 545 |
| 15 | 1119 |
| 16 | 2255 |
| 17 | 4529 |
| 18 | 9202 |
| 19 | 18989 |
| 20 | 39566 |
| 21 | 82614 |
| 22 | 172272 |
| 23 | 359159 |
| 24 | 750699 |
| 25 | 1575649 |
| 26 | 3319942 |
| 27 | 7012833 |
| 28 | 14834345 |
| 29 | 31414423 |
| 30 | 66619692 |
| 31 | 141526459 |
| 32 | 301202699 |
| 33 | 642055773 |
| 34 | 1370429491 |
| 35 | 2928418794 |