A142252 - OEIS

%I #9 Sep 08 2022 08:45:36

%S 3,89,347,433,691,863,1637,1723,2153,2239,2411,2927,3271,3529,3701,

%T 4217,4561,4733,5077,5507,5851,6367,6883,7829,8087,8431,8689,8861,

%U 9377,9463,9721,10151,10667,10753,11527,11699,12043,12301,12473,13591,13763,14107

%N Primes congruent to 3 mod 43.

%H Vincenzo Librandi, <a href="/A142252/b142252.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[{3},Mod[#,43]]&] (* _Vincenzo Librandi_, Aug 24 2012 *)

%o (Magma) [p: p in PrimesUpTo(15000) | p mod 43 eq 3 ]; // _Vincenzo Librandi_, Aug 24 2012

%o (PARI) is(n)=isprime(n) && n%43==3 \\ _Charles R Greathouse IV_, Jul 03 2016

%Y Cf. A000040.

%K nonn,easy

%O 1,1

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