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 | 240 |
2 | 15667200 |
3 | 262787825664000 |
4 | 1128647894950886768640000 |
5 | 1240960300690310266540982796288000000 |
6 | 349299250915794737048265419604885133559070720000000 |
7 | 25169663526478361283103094344080671195753840937477514828185600000000 |