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A142374 Primes congruent to 23 mod 47. 2
23, 211, 587, 1151, 1433, 1621, 1997, 2467, 2749, 2843, 3313, 3407, 3877, 4159, 4253, 4441, 4723, 4817, 5099, 5381, 5569, 5851, 6133, 6791, 7919, 8389, 10457, 10739, 11491, 11867, 12149, 12619, 12713, 13183, 13841, 14029, 14593, 14969, 15439, 16097, 16567 (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) ~ 46n log n. - Charles R Greathouse IV, Jul 03 2016

MATHEMATICA

Select[Prime[Range[2000]], Mod[#, 47]==23&] (* Harvey P. Dale, Feb 05 2012 *)

Select[Prime[Range[2500]], MemberQ[{23}, Mod[#, 47]]&] (* Vincenzo Librandi, Aug 27 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(18000) | p mod 47 eq 23]; // Vincenzo Librandi, Aug 27 2012

(PARI) is(n)=isprime(n) && n%47==23 \\ Charles R Greathouse IV, Jul 03 2016

CROSSREFS

Cf. A000040.

Sequence in context: A327918 A327919 A165243 * A171342 A112747 A201831

Adjacent sequences:  A142371 A142372 A142373 * A142375 A142376 A142377

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified June 6 04:15 EDT 2020. Contains 334859 sequences. (Running on oeis4.)