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 | 0 |
2 | 12 |
3 | 720 |
4 | 109200 |
5 | 31752000 |
6 | 15186346560 |
7 | 10852244282880 |
8 | 10851787634688000 |
9 | 14481281691676800000 |
10 | 24881574582258352358400 |
11 | 53525038934303849706393600 |
12 | 140958354488116955062668595200 |
13 | 446153762528143389466306560000000 |
14 | 1671353230826683972965623004979200000 |