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 | 20 |
3 | 168 |
4 | 1936 |
5 | 25376 |
6 | 378688 |
7 | 6284928 |
8 | 114471168 |
9 | 2263605760 |
10 | 48192279552 |
11 | 1097180784640 |
12 | 26562251100160 |
13 | 680591327567872 |
14 | 18381995707154432 |
15 | 521521320660205568 |
16 | 15495495061984051200 |
17 | 480873815489757970432 |
18 | 15549555768325162926080 |
19 | 522810678067316117733376 |