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A142256 Primes congruent to 7 mod 43. 1
7, 179, 523, 953, 1039, 1297, 2243, 3361, 3533, 3877, 4049, 4651, 4909, 5081, 5167, 5683, 6113, 6199, 7489, 7919, 8263, 8521, 8693, 8779, 8951, 9209, 9467, 9811, 10069, 10499, 11273, 11617, 11789, 12391, 12821, 12907, 13337, 13681, 14197, 14369, 14627, 14713 (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) ~ 42n log n. - Charles R Greathouse IV, Jul 03 2016

MATHEMATICA

Select[Prime[Range[5000]], MemberQ[{7}, Mod[#, 43]]&] (* Vincenzo Librandi, Aug 24 2012 *)

Select[Range[7, 15000, 43], PrimeQ] (* Harvey P. Dale, Feb 17 2015 *)

PROG

(MAGMA) [p: p in PrimesUpTo(17000) | p mod 43 eq 7 ]; // Vincenzo Librandi, Aug 24 2012

(PARI) is(n)=isprime(n) && n%43==7 \\ Charles R Greathouse IV, Jul 03 2016

CROSSREFS

Cf. A000040.

Sequence in context: A231490 A231489 A221110 * A226427 A226550 A141983

Adjacent sequences:  A142253 A142254 A142255 * A142257 A142258 A142259

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified September 25 18:12 EDT 2021. Contains 347659 sequences. (Running on oeis4.)