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 | 36 |
5 | 210 |
6 | 2430 |
7 | 32424 |
8 | 426552 |
9 | 6575304 |
10 | 118916640 |
11 | 2328078456 |
12 | 49421111256 |
13 | 1153979875152 |
14 | 29201577206256 |
15 | 791744021665344 |
16 | 22988121190902720 |
17 | 712541051083100160 |
18 | 23447653175729566080 |
19 | 816434611464004145280 |
20 | 30009023179153182132480 |