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A234285
as a simple table
n
a(n)
1
1
2
5
3
9
4
11
5
13
6
15
7
21
8
23
9
25
10
27
11
29
12
33
13
35
14
37
15
43
16
45
[1,5,9,11,13,15,21,23,25,27,29,33,35,37,43,45]
