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) |
---|---|
1 | 1 |
2 | 2 |
3 | 12 |
4 | 1680 |
5 | 11880 |
6 | 13366080 |
7 | 96909120 |
8 | 424097856000 |
9 | 3100796899200 |
10 | 37276043023296000 |
11 | 273589847231500800 |
12 | 7359037761652306329600 |
13 | 54123776422857453312000 |
14 | 2844359511118991175518208000 |