n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 2 |
3 | 12 |
4 | 24 |
5 | 240 |
6 | 720 |
7 | 10080 |
8 | 40320 |
9 | 725760 |
10 | 3628800 |
11 | 79833600 |
12 | 479001600 |
13 | 12454041600 |
14 | 87178291200 |
15 | 2615348736000 |
16 | 20922789888000 |
17 | 711374856192000 |
18 | 6402373705728000 |
19 | 243290200817664000 |
20 | 2432902008176640000 |
21 | 102181884343418880000 |
22 | 1124000727777607680000 |
[0,2,2,12,24,240,720,10080,40320,725760,3628800, 79833600,479001600,12454041600,87178291200, 2615348736000,20922789888000,711374856192000, 6402373705728000,243290200817664000, 2432902008176640000,102181884343418880000, 1124000727777607680000] |