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A064375
as a simple table
n
a(n)
1
2
2
3
3
4
4
6
5
8
6
10
7
12
8
14
9
18
10
20
11
24
12
30
13
36
14
42
15
60
[2,3,4,6,8,10,12,14,18,20,24,30,36,42,60]