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 | 1 |
2 | 20 |
3 | 9108 |
4 | 153675648 |
5 | 153926018668800 |
6 | 13624548214772203315200 |
7 | 148312029363286484759480524800000 |
8 | 262925014428462931164318003384701335633920000 |
9 | 96950311125839455466119755365478799838570665250861875200000 |