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A324096
as a simple table
n
a(n)
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
1
9
4
10
100
11
10790
12
7772555
13
12294282710
[0,0,0,0,0,0,0,1,4,100,10790,7772555,12294282710]