n | a(n) |
---|---|
1 | 6 |
2 | 24 |
3 | 132 |
4 | 816 |
5 | 5448 |
6 | 38808 |
7 | 290568 |
8 | 2255232 |
9 | 17981532 |
10 | 146428728 |
11 | 1213014960 |
12 | 10192820592 |
13 | 86687830596 |
14 | 744919762584 |
[6,24,132,816,5448,38808,290568,2255232,17981532, 146428728,1213014960,10192820592,86687830596, 744919762584] |