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A142273 Primes congruent to 24 mod 43. 1

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

%S 67,239,1013,1787,1873,2131,2389,2647,2819,3163,3593,3851,4969,5227,

%T 5399,5657,5743,6173,6689,6947,7549,8237,8581,8753,8839,9011,9613,

%U 9871,10301,10559,10903,11161,11677,12107,12451,12967,13397,13913,13999,15031,15289

%N Primes congruent to 24 mod 43.

%H Vincenzo Librandi, <a href="/A142273/b142273.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[{24},Mod[#,43]]&] (* _Vincenzo Librandi_, Aug 25 2012 *)

%t Select[Range[24,16000,43],PrimeQ] (* _Harvey P. Dale_, Sep 28 2013 *)

%o (Magma) [p: p in PrimesUpTo(16000) | p mod 43 eq 24 ]; // _Vincenzo Librandi_, Aug 25 2012

%o (PARI) is(n)=isprime(n) && n%43==24 \\ _Charles R Greathouse IV_, Jul 03 2016

%Y Cf. A000040.

%K nonn,easy

%O 1,1

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

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Last modified May 21 15:47 EDT 2024. Contains 372738 sequences. (Running on oeis4.)