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 | 6 |
2 | 140 |
3 | 12936 |
4 | 4756752 |
5 | 6974908512 |
6 | 40825196325056 |
7 | 954410297723625600 |
8 | 89149543741372647686400 |
9 | 33280303224443643993143232000 |
10 | 49660896290963321355372907102080000 |
11 | 296248087478941460167300263349693113600000 |
12 | 7065635944743752671502919147104799866118720000000 |