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 | 12 |
3 | 480 |
4 | 32592 |
5 | 3644160 |
6 | 601225152 |
7 | 136477985280 |
8 | 40777726478592 |
9 | 15519265846026240 |
10 | 7330634507726810112 |
11 | 4208431377781384765440 |
12 | 2886028889205733569318912 |
13 | 2330210584650322816604897280 |