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 | 1 |
3 | 4 |
4 | 84 |
5 | 9792 |
6 | 7015680 |
7 | 35334144000 |
8 | 1424547274752000 |
9 | 516934658477260800000 |
10 | 1875850653748811739955200000 |
11 | 74877948716953984356707205120000000 |
12 | 35866656974348638336845775173058560000000000 |