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 | 39916800 |
2 | 1456812592995513600 |
3 | 166369951631853645510591187200 |
4 | 31707078596527364069316526441204831526400 |
5 | 8089435115221815003427192379950659547969112311680000 |
6 | 2492107900477900258313589438717998843635090670139189341868499200 |