A142518 Primes congruent to 23 mod 52.

23, 127, 179, 283, 439, 491, 647, 751, 907, 1063, 1427, 1531, 1583, 1999, 2207, 2311, 2467, 3299, 3559, 3767, 3923, 4027, 4079, 4339, 4391, 4547, 4651, 4703, 5119, 5171, 5431, 5483, 5639, 5743, 6211, 6263, 6367, 6679, 6991, 7043, 7459, 7823, 7927, 8291

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.

Programs

Magma

[p: p in PrimesUpTo(10000) | p mod 52 eq 23]; // Vincenzo Librandi, Aug 29 2012

Mathematica

Select[Prime[Range[1300]], MemberQ[{23}, Mod[#, 52]] &] (* Vincenzo Librandi, Aug 29 2012 *)

PARI

is(n)=isprime(n) && n%52==23 \\ Charles R Greathouse IV, Jul 03 2016

Formula

a(n) ~ 24n log n. - Charles R Greathouse IV, Jul 03 2016