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A187193
as a simple table
n
a(n)
1
0
2
0
3
1440
4
40896
5
364800
6
1902240
7
7197120
8
21960960
9
57407616
10
133531200
11
283488480
12
559247040
13
1038660480
[0,0,1440,40896,364800,1902240,7197120,21960960, 57407616,133531200,283488480,559247040,1038660480]