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A018635
as a simple table
n
a(n)
1
1
2
2
3
3
4
4
5
6
6
8
7
12
8
16
9
24
10
32
11
48
12
64
13
96
14
128
15
192
16
256
17
384
18
768
[1,2,3,4,6,8,12,16,24,32,48,64,96,128,192,256,384, 768]