A142631 Primes congruent to 42 mod 55.

97, 317, 647, 757, 977, 1087, 1307, 1637, 1747, 2297, 2957, 3067, 3617, 3727, 3947, 4057, 4937, 5927, 6037, 6257, 6367, 6917, 7027, 7247, 7577, 7687, 7907, 8017, 8237, 8677, 9007, 9227, 9337, 9887, 10657, 10987, 11317, 11867, 12197, 12527, 12637, 12967, 13187

Offset

1,1

Links

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

Mathematica

Select[Prime[Range[2500]], MemberQ[{42}, Mod[#, 55]] &] (* Vincenzo Librandi, Aug 31 2012 *)
Select[Range[42, 14000, 55], PrimeQ] (* Bruno Berselli, Aug 31 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(14000) | p mod 55 eq 42]; // Vincenzo Librandi, Aug 31 2012

Crossrefs

Cf. A000040.

Sequence in context: A159507 A141899 A140627 * A087861 A269786 A366352

Adjacent sequences: A142628 A142629 A142630 * A142632 A142633 A142634

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved