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 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 15 |
6 | 160 |
7 | 1575 |
8 | 15659 |
9 | 163191 |
10 | 1809905 |
11 | 21474255 |
12 | 272757166 |
13 | 3703523824 |
14 | 53631736795 |
15 | 826097224680 |
16 | 13497286183354 |
17 | 233291225507890 |
18 | 4254733292942982 |
19 | 81680724157089634 |
20 | 1646873959921840191 |
21 | 34800264421134754997 |
22 | 769198023696181428250 |
23 | 17751664780107823096301 |