A142654 Primes congruent to 31 mod 56.

31, 199, 311, 367, 479, 647, 983, 1039, 1151, 1319, 1487, 1543, 1823, 1879, 2383, 2551, 2663, 2719, 2887, 2999, 3167, 3391, 3559, 3671, 3727, 4007, 4231, 4567, 4679, 4903, 5351, 5407, 5519, 5743, 6079, 6247, 6359, 6863, 7591, 7703, 7759, 7927, 8039, 8263

Offset

1,1

Links

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

Mathematica

Select[Prime[Range[1200]], Mod[#, 56]==31&] (* Harvey P. Dale, Dec 26 2010 *)
Select[Prime[Range[1300]], MemberQ[{31}, Mod[#, 56]] &] (* Vincenzo Librandi, Sep 01 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(10000) | p mod 56 eq 31 ]; // Vincenzo Librandi, Sep 01 2012

Crossrefs

Cf. A000040.

Sequence in context: A055816 A274501 A139998 * A137657 A228220 A125341

Adjacent sequences: A142651 A142652 A142653 * A142655 A142656 A142657

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved