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A017149
as a simple table
n
a(n)
0
7
1
15
2
23
3
31
4
39
5
47
6
55
7
63
8
71
9
79
10
87
11
95
12
103
13
111
14
119
15
127
16
135
17
143
18
151
19
159
[7,15,23,31,39,47,55,63,71,79,87,95,103,111,119, 127,135,143,151,159]