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 | 6 |
2 | 40 |
3 | 1008 |
4 | 3456 |
5 | 39916800 |
6 | 566092800 |
7 | 100590336000 |
8 | 355687428096000 |
9 | 1431118828339200 |
10 | 2688996956405760000 |
11 | 8617338912961658880000 |
12 | 224800145555521536000000 |
13 | 10888869450418352160768000000 |
14 | 8841761993739701954543616000000 |
15 | 4500732706172918893117440000000 |
16 | 280107019961673757919941754880000000 |