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A186307 as a simple table

n a(n)
1 2
2 3
3 5
4 7
5 11
6 13
7 17
8 31
9 61
10 73
11 181
12 241
13 421
14 757
15 1009
16 1321
17 1801
18 2161 

[2,3,5,7,11,13,17,31,61,73,181,241,421,757,1009,
 1321,1801,2161]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)