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 | 12 |
3 | 120960 |
4 | 5230697472000 |
5 | 3102242008666197196800000 |
6 | 61998887798316869577999908025139200000000 |
7 | 86897409147752508696036023331613625269650404482744320000000000 |
8 | 15860866523235520512929173666895185100358189521818149024850236796901838028800000000000000 |