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A108536
as a simple table
n
a(n)
0
4
1
1
2
2
3
1
4
1
5
1
6
2
7
1
8
1
9
2
10
1
11
4
12
1
13
4
14
1
15
9
[4,1,2,1,1,1,2,1,1,2,1,4,1,4,1,9]