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A357234
as a simple table
n
a(n)
1
1
2
3
3
5
4
7
5
17
6
23
7
31
8
39
9
51
10
63
11
75
12
89
13
105
14
121
15
139
16
159
[1,3,5,7,17,23,31,39,51,63,75,89,105,121,139,159]