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A279083
as a simple table
n
a(n)
1
1
2
3
3
4
4
6
5
8
6
12
7
16
8
18
9
20
10
24
11
28
12
30
13
32
14
36
15
40
[1,3,4,6,8,12,16,18,20,24,28,30,32,36,40]
