A142447 Primes congruent to 39 mod 49.

137, 431, 823, 1019, 1117, 1607, 1901, 1999, 2293, 3371, 3469, 4057, 4253, 4547, 5233, 5527, 5821, 6311, 6703, 6899, 6997, 7193, 7487, 7879, 8369, 8467, 8663, 8761, 9349, 9643, 9839, 10133, 10427, 11113, 11701, 11897, 12289, 12583, 13171, 13367, 13759

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Formula

a(n) ~ 42n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[1700]], Mod[#, 49]==39&]  (* Harvey P. Dale, Apr 01 2011 *)
Select[Prime[Range[2500]], MemberQ[{39}, Mod[#, 49]] &] (* Vincenzo Librandi, Aug 28 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(17000) | p mod 49 eq 39]; // Vincenzo Librandi, Aug 28 2012
(PARI) is(n)=isprime(n) && n%49==39 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A307839 A307840 A142211 * A142620 A188127 A142813

Adjacent sequences: A142444 A142445 A142446 * A142448 A142449 A142450

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved