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) |
|---|---|
| 0 | 1 |
| 1 | 80 |
| 2 | 4160 |
| 3 | 179200 |
| 4 | 6967296 |
| 5 | 254607360 |
| 6 | 8940421120 |
| 7 | 305659904000 |
| 8 | 10259284361216 |
| 9 | 339910422691840 |
| 10 | 11158051230842880 |
| 11 | 363834840082022400 |
| 12 | 11805930580539867136 |
| 13 | 381715961976738283520 |
| 14 | 12309283295632755261440 |