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 | -240 |
2 | 55440 |
3 | -12793920 |
4 | 2952385680 |
5 | -681306078240 |
6 | 157221316739520 |
7 | -36281112432850560 |
8 | 8372395974330234000 |
9 | -1932052510261208053680 |
10 | 445849302141400152457440 |
11 | -102886230661038692118348480 |