n | a(n) |
---|---|
1 | -1 |
2 | 3 |
3 | -30 |
4 | 840 |
5 | -45360 |
6 | 3963960 |
7 | -512431920 |
8 | 91708016400 |
9 | -21708518832000 |
10 | 6566197230552960 |
11 | -2470377569057798400 |
12 | 1131411784221938419200 |
13 | -619741850665486348800000 |
14 | 400063411654998957081216000 |
15 | -300571110264723992167009536000 |
16 | 260020540519396684696076728320000 |
17 | -256606704941070116606793272893440000 |
18 | 286541492507208304817420296882114560000 |
[-1,3,-30,840,-45360,3963960,-512431920, 91708016400,-21708518832000,6566197230552960, -2470377569057798400,1131411784221938419200, -619741850665486348800000, 400063411654998957081216000, -300571110264723992167009536000, 260020540519396684696076728320000, -256606704941070116606793272893440000, 286541492507208304817420296882114560000] |