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 | 1 |
2 | 12 |
3 | 396 |
4 | 25344 |
5 | 2661120 |
6 | 415134720 |
7 | 90084234240 |
8 | 25944259461120 |
9 | 9573431741153280 |
10 | 4403778600930508800 |
11 | 2470519795122015436800 |
12 | 1660189302321994373529600 |
13 | 1316530116741341538208972800 |
14 | 1216473827868999581305090867200 |
15 | 1295544626680484554089921773568000 |