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 | 1 |
| 8 | 3 |
| 9 | 9 |
| 10 | 25 |
| 11 | 66 |
| 12 | 170 |
| 13 | 431 |
| 14 | 1076 |
| 15 | 2665 |
| 16 | 6560 |
| 17 | 16067 |
| 18 | 39219 |
| 19 | 95476 |
| 20 | 231970 |
| 21 | 562736 |
| 22 | 1363640 |
| 23 | 3301586 |
| 24 | 7988916 |
| 25 | 19322585 |
| 26 | 46722160 |
| 27 | 112955614 |
| 28 | 273063236 |
| 29 | 660116215 |
| 30 | 1595906490 |
| 31 | 3858740567 |
| 32 | 9331539319 |
| 33 | 22570697689 |
| 34 | 54605064084 |
| 35 | 132137719127 |
| 36 | 319841444030 |