A105140 Numbers n such that 1024n+513 is prime.

7, 10, 11, 17, 22, 25, 31, 35, 44, 50, 65, 74, 79, 82, 85, 94, 100, 109, 110, 112, 115, 116, 122, 130, 140, 149, 151, 154, 155, 157, 164, 166, 172, 179, 206, 211, 214, 215, 221, 227, 229, 232, 245, 254, 256, 259, 269, 271, 277, 280, 281, 292, 295, 296, 299, 316, 322, 332

Offset: 1

Author

N. J. A. Sloane, based on correspondence from Marco Matosic, Apr 11 2005

Keywords

• nonn
• easy

Links

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

Crossrefs

Cf. A095278, A105133-A105139, A002145, A007521, A105126-A105132.

Programs

Magma

[n: n in [0..350] | IsPrime(1024*n + 513)]; // Vincenzo Librandi, Jan 08 2013

Mathematica

Select[Range[0, 500], PrimeQ[1024 # + 513]&] (* Vincenzo Librandi, Jan 08 2013 *)

PARI

is(n)=isprime(1024*n+513) \\ Charles R Greathouse IV, Feb 17 2017