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) |
---|---|
2 | 1 |
3 | 10 |
4 | 3360 |
5 | 1753920 |
6 | 1812888000 |
7 | 3158396841600 |
8 | 8496995611104000 |
9 | 33199738565849856000 |
10 | 180116271096528678912000 |
11 | 1310903590075375049994240000 |
12 | 12454930569778045924343408640000 |