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 | 120 |
2 | 13608000 |
3 | 2288430144000000 |
4 | 699207483978843840000000000 |
5 | 435858496811697532778806061260800000000000 |
6 | 597507154003470929939550139366865942134606725120000000000000 |
7 | 1898554530971015145216561379837863419725314413457243266261094236160000000000000000 |