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 | 168 |
2 | 138297600 |
3 | 273457218604953600 |
4 | 1298254740461168363656151040000 |
5 | 14798669658041409826117343924395087366717440000 |
6 | 405021050810995193742724745833742085838315883140458032922624000000 |