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) |
---|---|
3 | 1 |
4 | 30 |
5 | 30240 |
6 | 1816214400 |
7 | 10137091700736000 |
8 | 7561714896123855667200000 |
9 | 1025113885554181044609786839040000000 |
10 | 32964677266721834921175915315161407370035200000000 |
11 | 318071672921132854486459356650996997744817246158245068800000000000 |