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A159455
as a simple table
n
a(n)
2
2
3
3
4
2
5
1
6
1
7
2
8
2
9
3
10
5
11
5
12
7
13
7
14
9
15
10
[2,3,2,1,1,2,2,3,5,5,7,7,9,10]