A142360 Primes congruent to 9 mod 47.

103, 197, 479, 761, 1231, 1607, 1889, 3299, 3581, 3769, 3863, 4051, 5179, 5273, 5743, 6871, 7247, 7529, 7717, 8093, 8563, 9127, 9221, 9973, 10067, 10631, 11383, 12041, 12323, 12511, 13451, 13921, 14767, 15331, 16553, 16741, 17117, 17681, 18433, 19373, 19843

Offset

1,1

Links

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

Formula

a(n) ~ 46n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Prime[Range[2500]], MemberQ[{9}, Mod[#, 47]]&] (* Vincenzo Librandi, Aug 26 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(20000) | p mod 47 eq 9]; // Vincenzo Librandi, Aug 26 2012
(PARI) is(n)=isprime(n) && n%47==9 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040.

Sequence in context: A136075 A142174 A265497 * A044335 A044716 A260470

Adjacent sequences: A142357 A142358 A142359 * A142361 A142362 A142363

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved