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) |
|---|---|
| 3 | 12 |
| 4 | 8 |
| 5 | 120 |
| 6 | 108 |
| 7 | 756 |
| 8 | 704 |
| 9 | 3384 |
| 10 | 3340 |
| 11 | 11880 |
| 12 | 10032 |
| 13 | 33800 |
| 14 | 32312 |
| 15 | 82440 |
| 16 | 78656 |
| 17 | 182172 |
| 18 | 144540 |
| 19 | 365712 |
| 20 | 350600 |