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 | 1 |
2 | 1 |
3 | 2 |
4 | 48 |
5 | 414720 |
6 | 309586821120000 |
7 | 62298599877271470735360000000000 |
8 | 221419738218975714643056286355472083897548800000000000000000000 |
9 | 30963454718960054822969246779894642673092903344400531870724683866888280945459200000000000000000000000000000000000 |