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 | 40320 |
2 | 214899027840 |
3 | 2509137924026751360 |
4 | 41795104403987233709518080 |
5 | 852847938704373386478865686645120 |
6 | 19846219244619878972245087341015659057280 |
7 | 506348195597089273505079176351561351976609740160 |