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A052403
as a simple table
n
a(n)
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
1
9
2
10
33
11
187
12
1144
13
6919
14
38118
15
226581
16
1309875
[0,0,0,0,0,0,0,1,2,33,187,1144,6919,38118,226581, 1309875]