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) |
---|---|
2 | 4 |
3 | 114 |
4 | 4920 |
5 | 39911760 |
6 | 6187104000 |
7 | 355681201075200 |
8 | 121289412980736000 |
9 | 25851895093784567808000 |
10 | 8841761967887685215658639360000 |
11 | 8213996892184183115771019264000000 |
12 | 13763753083003506392138056763855339520000000 |