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 | 1 |
2 | 2 |
3 | 24 |
4 | 696 |
5 | 37320 |
6 | 3201840 |
7 | 401914800 |
8 | 69458497920 |
9 | 15813882201600 |
10 | 4587474713068800 |
11 | 1651825133370720000 |
12 | 722868238335090355200 |
13 | 377862727500237858278400 |
14 | 232536825223980698118297600 |