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A119833
as a simple table
n
a(n)
1
2
2
3
3
5
4
7
5
17
6
19
7
37
8
71
9
79
10
113
11
857
12
863
13
16361
14
62989
[2,3,5,7,17,19,37,71,79,113,857,863,16361,62989]
