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A081177
as a simple table
n
a(n)
1
1
2
2
3
2
4
5
5
4
6
7
7
12
8
6
9
3
10
3
11
27
12
3
13
3
14
10
15
24
16
3
17
3
18
12
[1,2,2,5,4,7,12,6,3,3,27,3,3,10,24,3,3,12]