n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 6 |
5 | 24 |
6 | 1 |
7 | 720 |
8 | 3 |
9 | 80 |
10 | 12 |
11 | 3628800 |
12 | 2 |
13 | 479001600 |
14 | 360 |
15 | 8 |
16 | 45 |
17 | 20922789888000 |
18 | 40 |
19 | 6402373705728000 |
20 | 6 |
21 | 240 |
22 | 1814400 |
23 | 1124000727777607680000 |
24 | 1 |
25 | 145152 |
26 | 239500800 |
27 | 13440 |
28 | 180 |
29 | 304888344611713860501504000000 |
[1,1,2,6,24,1,720,3,80,12,3628800,2,479001600,360, 8,45,20922789888000,40,6402373705728000,6,240, 1814400,1124000727777607680000,1,145152,239500800, 13440,180,304888344611713860501504000000] |