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A052458
as a simple table
n
a(n)
1
1
2
0
3
0
4
2
5
2
6
0
7
0
8
121
9
126
10
0
11
31187
12
2226896
13
17265701
14
0
15
69303997733
[1,0,0,2,2,0,0,121,126,0,31187,2226896,17265701,0, 69303997733]