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 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 24 |
5 | 520 |
6 | 11880 |
7 | 295960 |
8 | 8090880 |
9 | 242280640 |
10 | 7912262400 |
11 | 280384720000 |
12 | 10727852889600 |
13 | 441104638374400 |
14 | 19407654326860800 |
15 | 910140650683264000 |
16 | 45332366929833984000 |
17 | 2390437704451084288000 |
18 | 133060566042200788992000 |
19 | 7797805996570952986624000 |