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A161831
as a simple table
n
a(n)
1
1
2
2
3
2
4
4
5
2
6
4
7
4
8
8
9
4
10
4
11
4
12
8
13
6
14
8
15
10
16
18
17
10
18
4
[1,2,2,4,2,4,4,8,4,4,4,8,6,8,10,18,10,4]