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A040103
as a simple table
n
a(n)
0
2
1
3
2
7
3
11
4
17
5
19
6
23
7
31
8
41
9
43
10
47
11
59
12
67
13
71
14
73
15
79
16
83
17
89
18
97
19
103
20
107
21
113
22
127
[2,3,7,11,17,19,23,31,41,43,47,59,67,71,73,79,83, 89,97,103,107,113,127]