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 | 12 |
3 | 240 |
4 | 120960 |
5 | 638668800 |
6 | 15064408719360000 |
7 | 27259975545259032576000000 |
8 | 682714624600511148826789083611136000000000 |
9 | 2948964060660649503322235948384635104494106968064000000000000000 |