A142641 Primes congruent to 1 mod 56.

113, 281, 337, 449, 617, 673, 953, 1009, 1289, 2017, 2129, 2297, 2521, 2633, 2689, 2801, 2857, 2969, 3137, 3361, 3529, 3697, 4201, 4481, 4649, 4817, 5153, 5209, 5657, 5881, 6217, 6329, 6553, 6833, 7001, 7057, 7393, 7561, 7673, 7841, 8009, 8233, 8513, 8681

Offset

1,1

Links

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

Mathematica

Select[Prime[Range[1300]], MemberQ[{1}, Mod[#, 56]] &] (* Vincenzo Librandi, Sep 01 2012 *)
Select[Range[1, 9000, 56], PrimeQ] (* Harvey P. Dale, Dec 16 2021 *)

Prog

(Magma) [p: p in PrimesUpTo(10000) | p mod 56 eq 1 ]; // Vincenzo Librandi, Sep 01 2012

Crossrefs

Cf. A000040.

Sequence in context: A142917 A142947 A325067 * A070181 A001134 A070188

Adjacent sequences: A142638 A142639 A142640 * A142642 A142643 A142644

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved