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A262589
as a simple table
n
a(n)
2
0
3
0
4
2
5
0
6
4
7
0
8
40
9
0
10
64
11
0
12
316
13
6
14
448
15
90
16
3529
17
14
18
3836
19
0
[0,0,2,0,4,0,40,0,64,0,316,6,448,90,3529,14,3836, 0]