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 | 5 |
3 | 180 |
4 | 63720 |
5 | 281961000 |
6 | 18939602331000 |
7 | 22733280436308624000 |
8 | 561162207057469095693888000 |
9 | 322278252906706683140441912431680000 |
10 | 4806568058842248598039183477606983722184000000 |
11 | 2055653754202086984879290521714456895014175320595424000000 |