A013434 - OEIS

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A013434 as a simple table

n	a(n)
0	1
1	0
2	0
3	-10
4	-840
5	-87750
6	-12310100
7	-2287605450
8	-549013374000
9	-166031512396750
10	-61922192590147500
11	-27960041702488691250
12	-15045975711682274645000
13	-9519627048988069071093750

[1,0,0,-10,-840,-87750,-12310100,-2287605450, -549013374000,-166031512396750,-61922192590147500, -27960041702488691250,-15045975711682274645000, -9519627048988069071093750]