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A226484
as a simple table
n
a(n)
1
1
2
3
3
5
4
7
5
9
6
11
7
13
8
21
9
27
10
33
11
37
12
45
13
51
14
61
15
127
16
351
[1,3,5,7,9,11,13,21,27,33,37,45,51,61,127,351]