A142280 Primes congruent to 31 mod 43.

31, 461, 547, 719, 977, 1063, 1321, 1493, 1579, 2267, 3041, 3299, 3557, 3643, 4073, 4159, 4933, 5449, 5879, 6481, 6653, 6911, 6997, 8287, 8803, 9319, 9491, 9749, 10007, 10093, 10781, 10867, 11383, 11813, 12071, 12157, 12329, 13103, 13619, 13877, 13963, 14221

Offset

1,1

Links

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

Formula

a(n) ~ 42n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[5000]], MemberQ[{31}, Mod[#, 43]]&] (* Vincenzo Librandi, Aug 25 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(16000) | p mod 43 eq 31 ]; // Vincenzo Librandi, Aug 25 2012
(PARI) is(n)=isprime(n) && n%43==31 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A118196 A160443 A125466 * A160894 A010947 A022626

Adjacent sequences: A142277 A142278 A142279 * A142281 A142282 A142283

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved