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 | 9 |
3 | 720 |
4 | 56880 |
5 | 4492809 |
6 | 354875040 |
7 | 28030635360 |
8 | 2214065318409 |
9 | 174883129518960 |
10 | 13813553166679440 |
11 | 1091095817038156809 |
12 | 86182755992847708480 |
13 | 6807346627617930813120 |
14 | 537694200825823686528009 |
15 | 42471034518612453304899600 |
16 | 3354674032769557987400540400 |