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A321152
as a simple table
n
a(n)
1
2
2
3
3
4
4
5
5
6
6
8
7
10
8
12
9
14
10
16
11
18
12
20
13
24
14
36
15
48
16
60
17
72
18
84
19
96
20
120
[2,3,4,5,6,8,10,12,14,16,18,20,24,36,48,60,72,84, 96,120]