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A018708
as a simple table
n
a(n)
1
1
2
2
3
4
4
7
5
8
6
14
7
16
8
28
9
32
10
56
11
64
12
112
13
128
14
224
15
448
16
896
[1,2,4,7,8,14,16,28,32,56,64,112,128,224,448,896]