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 | -80 |
3 | -107520 |
4 | 10218700800 |
5 | 128549621071872000 |
6 | -362522272186301939712000000 |
7 | -359926496710320918207041372160000000000 |
8 | 186528815537358278677575816954481496555520000000000000 |