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 | 0 |
2 | 0 |
3 | 20160 |
4 | 57415680 |
5 | 418910083200 |
6 | 9841604944066560 |
7 | 811677284745084979200 |
8 | 246193686664597924471296000 |
9 | 282802656455710907157732271104000 |
10 | 1254507391643066981024665558462201036800 |