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A325697
as a simple table
n
a(n)
1
1
2
0
3
1
4
1
5
2
6
2
7
5
8
5
9
11
10
13
11
27
12
30
13
69
14
76
15
168
[1,0,1,1,2,2,5,5,11,13,27,30,69,76,168]