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A216825
as a simple table
n
a(n)
1
2
2
3
3
7
4
11
5
17
6
23
7
31
8
43
9
101
10
149
11
3109
12
47059
13
2217342227
14
1729101023519
[2,3,7,11,17,23,31,43,101,149,3109,47059, 2217342227,1729101023519]