n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 24 |
6 | 5 |
7 | 720 |
8 | 315 |
9 | 4480 |
10 | 567 |
11 | 3628800 |
12 | 1925 |
13 | 479001600 |
14 | 868725 |
15 | 14350336 |
16 | 638512875 |
17 | 20922789888000 |
18 | 14889875 |
19 | 6402373705728000 |
20 | 14849255421 |
21 | 7567605760000 |
22 | 17717861581875 |
23 | 1124000727777607680000 |
24 | 2505147019375 |
[1,1,2,3,24,5,720,315,4480,567,3628800,1925, 479001600,868725,14350336,638512875, 20922789888000,14889875,6402373705728000, 14849255421,7567605760000,17717861581875, 1124000727777607680000,2505147019375] |