A228886 - OEIS

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A228886 as a simple table

n	a(n)
1	1
2	0
3	1
4	0
5	1
6	8
7	3
8	24
9	78
10	1164
11	34
12	4021156
13	400
14	87180
15	2499480
16	7509358
17	1700352
18	39982182134232
19	1427688
20	212987263960
21	9533487948
22	36638961135462
23	29317847040
24	30258969747586970112
25	1655088666624

[1,0,1,0,1,8,3,24,78,1164,34,4021156,400,87180, 2499480,7509358,1700352,39982182134232,1427688, 212987263960,9533487948,36638961135462, 29317847040,30258969747586970112,1655088666624]