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 | 2 |
2 | 12 |
3 | 1120 |
4 | 50450400 |
5 | 1387660381886338560 |
6 | 58833957894412548628347941194431580569600 |
7 | 54468560860672704568758301042326371229883670125439070950586847311164532855256159027200000 |