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 | 720 |
3 | 1814400 |
4 | 12192768000 |
5 | 184354652160000 |
6 | 5574884681318400000 |
7 | 309071606732292096000000 |
8 | 29374165503837040803840000000 |
9 | 4536546120412592581745049600000000 |