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 | 7 |
3 | 140 |
4 | 5394 |
5 | 336024 |
6 | 30663840 |
7 | 3846629520 |
8 | 634415055120 |
9 | 133073632016640 |
10 | 34596321663980160 |
11 | 10919217470376902400 |
12 | 4113179201266142515200 |
13 | 1822997615295693513600000 |
14 | 939158618068666181592806400 |
15 | 556530141861219809204393472000 |