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 | 30 |
2 | 3410 |
3 | 2330240 |
4 | 7549603600 |
5 | 118965950703744 |
6 | 9309505329218297280 |
7 | 3637689729211851543816960 |
8 | 7105314552536912564123328420000 |
9 | 69388718760088702173445263653542192000 |