n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 54 |
4 | 648 |
5 | 9720 |
6 | 174960 |
7 | 3674160 |
8 | 88179840 |
9 | 2380855680 |
10 | 71425670400 |
11 | 2357047123200 |
12 | 84853696435200 |
13 | 3309294160972800 |
14 | 138990354760857600 |
15 | 6254565964238592000 |
16 | 300219166283452416000 |
17 | 15311177480456073216000 |
[1,6,54,648,9720,174960,3674160,88179840, 2380855680,71425670400,2357047123200, 84853696435200,3309294160972800, 138990354760857600,6254565964238592000, 300219166283452416000,15311177480456073216000] |