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 | 0 |
3 | 0 |
4 | 5040 |
5 | 1249920 |
6 | 1315915776 |
7 | 2224389629952 |
8 | 13813319064330240 |
9 | 219415609610739548160 |
10 | 16360077906225109102362624 |
11 | 3333279237117892795069534568448 |
12 | 2704161159785811615896281588873297920 |