A075747 Numbers n such that 210*n + 17 is prime.
0, 1, 3, 4, 6, 7, 8, 9, 14, 15, 18, 19, 20, 22, 26, 28, 30, 32, 33, 36, 41, 42, 44, 45, 46, 47, 52, 56, 57, 58, 62, 64, 66, 67, 70, 72, 75, 77, 79, 81, 84, 86, 87, 90, 96, 99, 100, 101, 103, 105, 106, 108, 109, 110, 111, 112, 113, 114, 123, 125, 127, 129, 131, 132, 133
Offset: 1
Examples
n=1: 210*1 + 17 = 227 is prime.
Links
- Vincenzo Librandi, Table of n, a(n) for n = 1..1000
Crossrefs
Cf. A140842.
Programs
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Magma
[n: n in [0..150]| IsPrime(210*n + 17)]; // Vincenzo Librandi, Oct 04 2012
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Mathematica
Select[Range[0, 500], PrimeQ[210*# + 17] &] (* Vincenzo Librandi, Oct 04 2012 *)
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PARI
is(n)=isprime(210*n+17) \\ Charles R Greathouse IV, May 22 2017
Extensions
0 inserted by Ray Chandler, Apr 30 2010