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A346197
as a simple table
n
a(n)
1
7
2
15
3
21
4
27
5
33
6
39
7
47
8
53
9
59
10
67
11
73
12
79
13
87
14
93
15
99
16
107
17
113
18
119
19
127
20
133
21
139
[7,15,21,27,33,39,47,53,59,67,73,79,87,93,99,107, 113,119,127,133,139]