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 | 12 |
2 | 5616 |
3 | 6065280 |
4 | 237783237120 |
5 | 21032402889738240 |
6 | 67034222101339041669120 |
7 | 480860607452861427947598643200 |
8 | 124190524600592082795473760093457612800 |