%I #11 Sep 08 2022 08:45:36

%S 41,127,557,643,1847,1933,2621,2707,2879,3137,3739,3911,4513,4943,

%T 5717,6491,6577,7351,7523,7867,8039,8297,8641,9157,9587,9931,10103,

%U 11393,11909,12253,12511,12941,13457,14489,14747,15091,15263,15349,15607,16381,16553

%N Primes congruent to 41 mod 43.

%H Vincenzo Librandi, <a href="/A142290/b142290.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) ~ 42n log n. - _Charles R Greathouse IV_, Jul 03 2016

%t Select[Prime[Range[5000]],MemberQ[{41},Mod[#,43]]&] (* _Vincenzo Librandi_, Aug 25 2012 *)

%t Select[Range[41,17000,43],PrimeQ] (* _Harvey P. Dale_, Jul 28 2018 *)

%o (Magma) [p: p in PrimesUpTo(18000) | p mod 43 eq 41 ]; // _Vincenzo Librandi_, Aug 25 2012

%o (PARI) is(n)=isprime(n) && n%43==41 \\ _Charles R Greathouse IV_, Jul 03 2016

%Y Cf. A000040.

%K nonn,easy

%O 1,1

%A _N. J. A. Sloane_, Jul 11 2008