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 | 2 |
3 | 24 |
4 | 5376 |
5 | 72253440 |
6 | 192663508746240 |
7 | 345230911480770991226880 |
8 | 1436598918224589625071929521581588480 |
9 | 48781096034575545526663437061892218092260229434572800 |