A142450 Primes congruent to 43 mod 49.

43, 239, 337, 631, 827, 1709, 2003, 2297, 2591, 2689, 3571, 3767, 4159, 4649, 4943, 5237, 5531, 5923, 6217, 7001, 7393, 7589, 7687, 7883, 8863, 9059, 9157, 9941, 10039, 10333, 10529, 10627, 11117, 11411, 12097, 12391, 12979, 13469, 13567, 13763, 14057, 14449

Offset

1,1

Links

Vincenzo Librandi, 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[2500]], MemberQ[{43}, Mod[#, 49]] &] (* Vincenzo Librandi, Aug 28 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(17000) | p mod 49 eq 43]; // Vincenzo Librandi, Aug 28 2012
(PARI) is(n)=isprime(n) && n%49==43 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A302977 A362407 A158080 * A259421 A202008 A258214

Adjacent sequences: A142447 A142448 A142449 * A142451 A142452 A142453

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved