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 | 2 |
2 | 12 |
3 | 1440 |
4 | 7257600 |
5 | 289700167680000 |
6 | 1803968969906847744000000 |
7 | 641649083271157094762019815424000000000 |
8 | 78053467161754909919949074014980107579424768000000000000 |