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 | 5040 |
2 | 326918592000 |
3 | 1211813284635233280000 |
4 | 64240926985765022013480960000000 |
5 | 24899758399899222849902687670779904000000000 |
6 | 47355329866546908076714664639943599847875543040000000000 |