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 | 1 |
2 | 0 |
3 | 4 |
4 | 24 |
5 | 256 |
6 | 3360 |
7 | 53824 |
8 | 1016064 |
9 | 22095616 |
10 | 543966720 |
11 | 14955833344 |
12 | 454227400704 |
13 | 15103031627776 |
14 | 545668238868480 |
15 | 21286707282264064 |
16 | 891735287528914944 |
17 | 39926103010743156736 |