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A096393
as a simple table
n
a(n)
1
2
2
3
3
3
4
3
5
17
6
3
7
3
8
7
9
37
10
3
11
3
12
43
13
3
14
5
15
5
16
3
17
3
18
23
19
3
20
7
[2,3,3,3,17,3,3,7,37,3,3,43,3,5,5,3,3,23,3,7]