A154610 Numbers n such that 13n + 5 is prime.

0, 2, 6, 8, 18, 24, 32, 38, 44, 56, 62, 66, 72, 74, 78, 84, 86, 92, 98, 108, 114, 128, 132, 134, 144, 162, 164, 174, 176, 182, 186, 198, 204, 206, 224, 228, 246, 248, 254, 258, 266, 272, 276, 282, 284, 296, 302, 318, 324, 326, 336, 342, 368, 378, 386, 392, 396

Offset: 1

Author

Vincenzo Librandi, Jan 15 2009

Keywords

• nonn
• easy

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A102732, A154609.

Programs

Magma

[n: n in [0..410] | IsPrime(13*n+5)]; // Vincenzo Librandi, Sep 24 2012

Mathematica

lst={};Do[p=13*n+5;If[PrimeQ[p],AppendTo[lst,n]],{n,0,6!}];lst (* Vladimir Joseph Stephan Orlovsky, Jul 01 2009 *)
Select[Range[0, 100], PrimeQ[13#+5]&] (* Vincenzo Librandi, Sep 24 2012 *)

PARI

is(n)=isprime(13*n+5) \\ Charles R Greathouse IV, Sep 24 2012

Extensions

More terms from Vladimir Joseph Stephan Orlovsky, Jul 01 2009