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A089592
as a simple table
n
a(n)
1
2
2
11
3
17
4
79
5
107
6
109
7
709
8
4003
9
10009
10
11003
11
1000039
12
1100009
13
400000043
14
1000000009
15
150000000000007
[2,11,17,79,107,109,709,4003,10009,11003,1000039, 1100009,400000043,1000000009,150000000000007]