A142408 Primes congruent to 31 mod 48.

31, 79, 127, 223, 271, 367, 463, 607, 751, 991, 1039, 1087, 1231, 1279, 1327, 1423, 1471, 1567, 1663, 1759, 1951, 1999, 2143, 2239, 2287, 2383, 2671, 2719, 2767, 3343, 3391, 3583, 3631, 3727, 3823, 3919, 3967, 4111, 4159, 4447, 4591, 4639, 4783, 4831, 5023

Offset

1,1

Links

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

Formula

a(n) ~ 16n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[1000]], MemberQ[{31}, Mod[#, 48]] &] (* Vincenzo Librandi, Aug 27 2012 *)
Select[Range[31, 5100, 48], PrimeQ] (* Harvey P. Dale, Jan 17 2017 *)

Prog

(Magma) [p: p in PrimesUpTo(6000) | p mod 48 eq 31]; // Vincenzo Librandi, Aug 27 2012
(PARI) is(n)=isprime(n) && n%48==31 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A317053 A009408 A165615 * A246929 A033220 A139855

Adjacent sequences: A142405 A142406 A142407 * A142409 A142410 A142411

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved