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 | 4 |
2 | 12 |
3 | 240 |
4 | 10080 |
5 | 79833600 |
6 | 12454041600 |
7 | 711374856192000 |
8 | 243290200817664000 |
9 | 51704033477769953280000 |
10 | 17683523987479403909087232000000 |
11 | 16445677308355845635451125760000000 |
12 | 27527506182452690092631959163161804800000000 |