n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 2 |
4 | 24 |
5 | 120 |
6 | 240 |
7 | 5040 |
8 | 40320 |
9 | 120960 |
10 | 3628800 |
11 | 39916800 |
12 | 159667200 |
13 | 6227020800 |
14 | 87178291200 |
15 | 435891456000 |
16 | 20922789888000 |
17 | 355687428096000 |
18 | 2134124568576000 |
19 | 121645100408832000 |
20 | 2432902008176640000 |
21 | 17030314057236480000 |
22 | 1124000727777607680000 |
[1,2,2,24,120,240,5040,40320,120960,3628800, 39916800,159667200,6227020800,87178291200, 435891456000,20922789888000,355687428096000, 2134124568576000,121645100408832000, 2432902008176640000,17030314057236480000, 1124000727777607680000] |