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 | 0 |
2 | 0 |
3 | 6 |
4 | 24 |
5 | 0 |
6 | 1080 |
7 | 15120 |
8 | 60480 |
9 | 967680 |
10 | 29030400 |
11 | 319334400 |
12 | 3772137600 |
13 | 129729600000 |
14 | 2724321600000 |
15 | 41366099174400 |
16 | 1238803517952000 |
17 | 38414242234368000 |
18 | 840907325318860800 |
19 | 23606245443503923200 |
20 | 878145842759657472000 |
21 | 26509751796795531264000 |