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A119834
as a simple table
n
a(n)
1
2
2
3
3
5
4
7
5
11
6
31
7
61
8
83
9
101
10
113
11
409
12
659
13
857
14
1373
15
2711
16
5897
17
6869
18
7699
19
32983
20
37021
21
44491
[2,3,5,7,11,31,61,83,101,113,409,659,857,1373, 2711,5897,6869,7699,32983,37021,44491]