A115786 - OEIS

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A115786 as a simple table

n	a(n)
1	3
2	5
3	11
4	17
5	41
6	41
7	41
8	41
9	86351
10	86351
11	235313357
12	729457511
13	99445156397
14	818113387907
15	7986903815771
16	29065965967667

[3,5,11,17,41,41,41,41,86351,86351,235313357, 729457511,99445156397,818113387907,7986903815771, 29065965967667]