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) |
---|---|
4 | 1 |
5 | 840 |
6 | 498960 |
7 | 285405120 |
8 | 173145772800 |
9 | 115598414131200 |
10 | 86165279456256000 |
11 | 72034173625430016000 |
12 | 67538393730337001472000 |
13 | 70856069211827240140800000 |
14 | 82901600977837870964736000000 |