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A269746
as a simple table
n
a(n)
1
1
2
2
3
4
4
6
5
8
6
10
7
13
8
16
9
20
10
24
11
28
12
32
13
36
14
40
[1,2,4,6,8,10,13,16,20,24,28,32,36,40]