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 | 12 |
2 | 252 |
3 | 5664 |
4 | 133356 |
5 | 3224952 |
6 | 79387488 |
7 | 1978996416 |
8 | 49797787788 |
9 | 1262193008556 |
10 | 32177428972632 |
11 | 824182154521056 |
12 | 21193138994244960 |
13 | 546767126418119352 |
14 | 14146104826919725632 |
15 | 366887630982365262144 |
16 | 9535791498480146879436 |