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 | 20 |
3 | 1120 |
4 | 123200 |
5 | 22422400 |
6 | 6098892800 |
7 | 2317579264000 |
8 | 1172695107584000 |
9 | 762251819929600000 |
10 | 618948477782835200000 |
11 | 613996889960572518400000 |
12 | 730656299053081296896000000 |
13 | 1027302756468632303435776000000 |
14 | 1684776520608556977634672640000000 |