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 | 1 |
2 | 1 |
3 | 3 |
4 | 15 |
5 | 330 |
6 | 50388 |
7 | 225792840 |
8 | 202355008436035 |
9 | 1051518440185020535448910 |
10 | 6295006026005594769305465540976338825800 |
11 | 250690498666352364302787619036257555981545221373940020366174361300 |
12 | 76323919118339641225070197870691336391548146418602896138838604379490915124967820851616650659494440178513500 |