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A142369 Primes congruent to 18 mod 47. 2
347, 911, 1193, 1381, 1663, 2039, 2791, 3167, 3449, 3637, 3919, 4013, 4201, 4483, 5987, 6269, 6551, 6833, 7867, 8243, 8431, 8713, 8807, 9277, 9371, 10499, 10687, 10781, 11251, 11909, 12097, 12379, 12473, 13037, 13789, 13883, 14071, 14447, 15199, 16139, 16421 (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[2500]], MemberQ[{18}, Mod[#, 47]]&] (* Vincenzo Librandi, Aug 27 2012 *)

Select[Range[18, 17000, 47], PrimeQ] (* Harvey P. Dale, Mar 06 2016 *)

PROG

(MAGMA) [p: p in PrimesUpTo(18000) | p mod 47 eq 18]; // Vincenzo Librandi, Aug 27 2012

(PARI) is(n)=isprime(n) && n%47==18 \\ Charles R Greathouse IV, Jul 03 2016

CROSSREFS

Cf. A000040.

Sequence in context: A052163 A210363 A054823 * A190814 A012868 A226669

Adjacent sequences:  A142366 A142367 A142368 * A142370 A142371 A142372

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified January 22 23:09 EST 2021. Contains 340383 sequences. (Running on oeis4.)