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 | 1080 |
3 | 16133644800 |
4 | 139256878046022696960000 |
5 | 6288402750181849898716908922601472000000000 |
6 | 8322157105451357856813375261666887975745751468393837363200000000000000 |