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 | 12 |
3 | 720 |
4 | 181440 |
5 | 7257600 |
6 | 399168000 |
7 | 1307674368000 |
8 | 73229764608000 |
9 | 731699852083200 |
10 | 229909239772692480000 |
11 | 84300054583320576000000 |
12 | 51186993142992253747200000 |
13 | 21777738900836704321536000000 |