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A018600
as a simple table
n
a(n)
1
1
2
2
3
4
4
8
5
11
6
16
7
22
8
32
9
44
10
64
11
88
12
176
13
352
14
704
[1,2,4,8,11,16,22,32,44,64,88,176,352,704]