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) |
|---|---|
| 5 | 6 |
| 6 | 42 |
| 7 | 168 |
| 8 | 504 |
| 9 | 1260 |
| 10 | 2772 |
| 11 | 5544 |
| 12 | 10296 |
| 13 | 18018 |
| 14 | 30030 |
| 15 | 48048 |
| 16 | 74256 |
| 17 | 111384 |
| 18 | 162792 |
| 19 | 232560 |
| 20 | 325584 |
| 21 | 447678 |
| 22 | 605682 |
| 23 | 807576 |
| 24 | 1062600 |
| 25 | 1381380 |
| 26 | 1776060 |
| 27 | 2260440 |
| 28 | 2850120 |
| 29 | 3562650 |
| 30 | 4417686 |
| 31 | 5437152 |
| 32 | 6645408 |
| 33 | 8069424 |
| 34 | 9738960 |
| 35 | 11686752 |
| 36 | 13948704 |
| 37 | 16564086 |