A142006 Primes congruent to 2 mod 31.

2, 157, 281, 467, 653, 839, 1087, 1459, 1583, 1831, 2017, 2141, 2203, 2389, 2699, 3257, 3319, 3691, 3877, 4001, 4373, 4621, 4931, 4993, 5179, 5303, 5737, 5861, 5923, 6047, 6481, 6791, 6977, 7039, 7349, 7411, 7907, 8093, 8527, 8713, 8837, 9209, 9643, 9767

Offset

1,1

Links

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

Formula

{2} UNION A142874. - R. J. Mathar, Jul 20 2008

a(n) ~ 30n log n. - Charles R Greathouse IV, Apr 28 2015

Mathematica

Select[Range[2, 20000, 31], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Apr 07 2011 *)

Prog

(Magma)([p: p in PrimesUpTo(12000) | p mod 31 eq 2 ]; // Vincenzo Librandi, Aug 17 2012
(PARI) select(n->n%31==2, primes(1000)) \\ Charles R Greathouse IV, Apr 28 2015

Crossrefs

Cf. A000040, A141977, A142005.

Sequence in context: A103042 A284458 A260886 * A233575 A233263 A124225

Adjacent sequences: A142003 A142004 A142005 * A142007 A142008 A142009

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved