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 | 1 |
2 | 3 |
3 | 36 |
4 | 270 |
5 | 4320 |
6 | 17010 |
7 | 5443200 |
8 | 204120 |
9 | 2351462400 |
10 | 1515591000 |
11 | 2172751257600 |
12 | 354648294000 |
13 | 10168475885568000 |
14 | 7447614174000 |
15 | 1830325659402240000 |
16 | 1595278956070800000 |
17 | 2987091476144455680000 |