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 | 2 |
2 | 4 |
3 | 72 |
4 | 272 |
5 | 2080 |
6 | 270400 |
7 | 2146432 |
8 | 33751296 |
9 | 403702272 |
10 | 1103810790400 |
11 | 17635156690944 |
12 | 563431073648640 |
13 | 13515197331283968 |
14 | 360331952265379840 |
15 | 37785849814204784082944 |
16 | 1209091844251972299456512 |
17 | 77374499118322174520328192 |
18 | 3713890953695657990811811840 |