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A318239
as a simple table
n
a(n)
1
2
2
3
3
5
4
6
5
7
6
10
7
11
8
12
9
18
10
20
11
24
12
40
13
42
14
45
15
48
16
54
17
72
18
80
19
96
[2,3,5,6,7,10,11,12,18,20,24,40,42,45,48,54,72,80, 96]