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A182058
as a simple table
n
a(n)
1
1
2
3
3
5
4
7
5
9
6
13
7
17
8
21
9
25
10
29
11
33
12
37
13
41
14
45
15
49
16
57
17
65
18
73
19
81
20
89
[1,3,5,7,9,13,17,21,25,29,33,37,41,45,49,57,65,73, 81,89]