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) |
---|---|
2 | 2 |
3 | 16 |
4 | 144 |
5 | 4608 |
6 | 115200 |
7 | 4147200 |
8 | 203212800 |
9 | 26011238400 |
10 | 2106910310400 |
11 | 210691031040000 |
12 | 25493614755840000 |
13 | 3671080524840960000 |
14 | 620412608698122240000 |
15 | 121600871304831959040000 |