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A175951
as a simple table
n
a(n)
0
1
1
2
2
4
3
8
4
16
5
32
6
52
7
104
8
208
9
416
10
832
11
1664
12
1856
13
3712
[1,2,4,8,16,32,52,104,208,416,832,1664,1856,3712]