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A129806 Primes congruent to +-5 mod 18. 4
5, 13, 23, 31, 41, 59, 67, 103, 113, 131, 139, 149, 157, 167, 193, 211, 229, 239, 257, 283, 293, 311, 337, 347, 373, 383, 401, 409, 419, 463, 491, 499, 509, 563, 571, 599, 607, 617, 643, 653, 661, 733, 743, 751, 761, 769, 787, 797, 823, 859, 877, 887, 941, 967, 977, 1013 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Primes congruent to (5,13) mod 18. - Vincenzo Librandi, Aug 14 2012

LINKS

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

Emma Lehmer, On special primes, Pac. J. Math., 118 (1985), 471-478.

MATHEMATICA

Select[Prime[Range[4000]], MemberQ[{5, 13}, Mod[#, 18]]&] (* Vincenzo Librandi, Aug 14 2012 *)

PROG

(MAGMA) [ p: p in PrimesUpTo(1300) | p mod 18 in {5, 13} ]; // Vincenzo Librandi, Aug 14 2012

CROSSREFS

Cf. A129805, A129807.

Sequence in context: A155552 A219546 A143988 * A125830 A049882 A108195

Adjacent sequences:  A129803 A129804 A129805 * A129807 A129808 A129809

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, May 22 2007

STATUS

approved

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Last modified June 18 04:41 EDT 2021. Contains 345098 sequences. (Running on oeis4.)