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) |
|---|---|
| 7 | 0 |
| 8 | 1 |
| 9 | 1 |
| 10 | 3 |
| 11 | 8 |
| 12 | 22 |
| 13 | 60 |
| 14 | 167 |
| 15 | 466 |
| 16 | 1307 |
| 17 | 3681 |
| 18 | 10418 |
| 19 | 29575 |
| 20 | 84219 |
| 21 | 240407 |
| 22 | 687802 |
| 23 | 1971576 |
| 24 | 5661335 |
| 25 | 16281377 |
| 26 | 46888590 |
| 27 | 135202932 |
| 28 | 390300559 |
| 29 | 1127877757 |
| 30 | 3262398334 |
| 31 | 9444747407 |
| 32 | 27364824226 |
| 33 | 79344643855 |
| 34 | 230219356666 |
| 35 | 668412171376 |
| 36 | 1941808202980 |
| 37 | 5644309042885 |