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 | 0 |
2 | 60 |
3 | 960 |
4 | 30780 |
5 | 996480 |
6 | 36560400 |
7 | 1430553600 |
8 | 59089923900 |
9 | 2543035488000 |
10 | 113129280527760 |
11 | 5170796720812800 |
12 | 241741903350301200 |
13 | 11520044551208793600 |
14 | 558061378022616811200 |
15 | 27421336248833005839360 |