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 | 720 |
3 | 3628800 |
4 | 1316818944000 |
5 | 52563198423859200000 |
6 | 327312129899898454671360000000 |
7 | 428017682605583614976547335700480000000000 |
8 | 152240508705590071980086429193304853792686080000000000000 |