A141908 Primes congruent to 2 mod 23.

2, 71, 163, 347, 439, 577, 761, 853, 991, 1129, 1451, 1543, 2003, 2141, 2371, 2417, 2647, 2693, 2969, 3061, 3613, 3659, 3797, 3889, 4027, 4073, 4211, 4349, 4441, 4993, 5039, 5407, 5591, 5683, 5821, 5867, 6143, 6373, 6833, 6971, 7109, 7247, 7477, 7523, 7753

Offset: 1

Author

N. J. A. Sloane, Jul 11 2008

Keywords

• nonn
• easy

Links

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

Crossrefs

Cf. A000040, A040984.

Programs

Magma

[p: p in PrimesUpTo(8000) | p mod 23 eq 2 ]; // Vincenzo Librandi, Aug 16 2012

Mathematica

Select[Range[2,8000,23],PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Apr 05 2011 *)

PARI

is(n)=isprime(n) && n%23==2 \\ Charles R Greathouse IV, Jul 01 2016

Formula

{2} UNION A142344. - R. J. Mathar, Jul 20 2008