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A142426 Primes congruent to 15 mod 49. 1
113, 211, 701, 1093, 1289, 1583, 1877, 2269, 2857, 3347, 3739, 4229, 4327, 4523, 4621, 4817, 5209, 5503, 6091, 6287, 6581, 6679, 7561, 7757, 8443, 8737, 8933, 9227, 9521, 9619, 10501, 11383, 11579, 11677, 11971, 12853, 13049, 13147, 13441, 13931, 14029 (list; graph; refs; listen; history; text; internal format)
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[{15}, Mod[#, 49]] &] (* Vincenzo Librandi, Aug 28 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(16000) | p mod 49 eq 15]; // Vincenzo Librandi, Aug 28 2012

(PARI) is(n)=isprime(n) && n%49==15 \\ Charles R Greathouse IV, Jul 03 2016

CROSSREFS

Cf. A000040.

Sequence in context: A142276 A054695 A054696 * A309617 A210512 A319936

Adjacent sequences:  A142423 A142424 A142425 * A142427 A142428 A142429

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified September 17 09:00 EDT 2021. Contains 347478 sequences. (Running on oeis4.)