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A142381 Primes congruent to 30 mod 47. 1
359, 547, 641, 829, 1487, 2239, 2333, 2521, 2803, 2897, 3461, 3931, 4871, 5059, 5153, 5623, 5717, 6469, 6563, 7127, 7691, 7879, 8161, 8443, 8537, 8819, 9007, 11827, 12109, 12203, 12391, 13049, 13331, 13613, 14083, 14177, 14741, 14929, 15493, 16057, 16339 (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[{30}, Mod[#, 47]] &] (* Vincenzo Librandi, Aug 27 2012 *)

Select[Range[30, 17000, 47], PrimeQ] (* Harvey P. Dale, Apr 29 2019 *)

PROG

(MAGMA) [p: p in PrimesUpTo(18000) | p mod 47 eq 30]; // Vincenzo Librandi, Aug 27 2012

(PARI) is(n)=isprime(n) && n%47==30 \\ Charles R Greathouse IV, Jul 03 2016

CROSSREFS

Cf. A000040.

Sequence in context: A273806 A292618 A186461 * A054826 A101796 A175537

Adjacent sequences:  A142378 A142379 A142380 * A142382 A142383 A142384

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified May 11 10:19 EDT 2021. Contains 343788 sequences. (Running on oeis4.)