n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 4 |
5 | 4 |
6 | 24 |
7 | 24 |
8 | 192 |
9 | 1728 |
10 | 17280 |
11 | 17280 |
12 | 207360 |
13 | 207360 |
14 | 414720 |
15 | 6220800 |
16 | 99532800 |
17 | 696729600 |
18 | 12541132800 |
19 | 12541132800 |
20 | 250822656000 |
21 | 5267275776000 |
22 | 10534551552000 |
23 | 10534551552000 |
24 | 252829237248000 |
25 | 1264146186240000 |
26 | 12641461862400000 |
27 | 3754514173132800000 |
[1,1,1,4,4,24,24,192,1728,17280,17280,207360, 207360,414720,6220800,99532800,696729600, 12541132800,12541132800,250822656000, 5267275776000,10534551552000,10534551552000, 252829237248000,1264146186240000, 12641461862400000,3754514173132800000] |