n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 6 |
4 | 40 |
5 | 360 |
6 | 4576 |
7 | 82656 |
8 | 2122240 |
9 | 77366400 |
10 | 4002843136 |
11 | 293717546496 |
12 | 30558458490880 |
13 | 4505780560619520 |
14 | 941417163728674816 |
15 | 278628902101315608576 |
16 | 116805328001281573519360 |
[0,1,6,40,360,4576,82656,2122240,77366400, 4002843136,293717546496,30558458490880, 4505780560619520,941417163728674816, 278628902101315608576,116805328001281573519360] |