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 | 1512 |
| 3 | 624937680 |
| 4 | 808742880 |
| 5 | 87348127500 |
| 6 | 139103775360 |
| 7 | 150780265560 |
| 8 | 261880857000 |