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A142132 Primes congruent to 23 mod 37. 5

%I #12 Sep 08 2022 08:45:35

%S 23,97,467,541,911,1429,1873,2243,2539,2687,2909,3797,4019,4093,4241,

%T 4463,4759,5351,5573,5647,5869,6091,7127,7349,7793,7867,8089,8237,

%U 8311,8681,9199,9421,9643,9791,10457,10531,10753,11197,11789,11863,12011,12899,12973

%N Primes congruent to 23 mod 37.

%H Vincenzo Librandi, <a href="/A142132/b142132.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) ~ 36n log n. - _Charles R Greathouse IV_, Jul 02 2016

%t Select[Range[23,30000,37],PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, May 11 2011 *)

%t Select[Prime[Range[5000]],MemberQ[{23},Mod[#,37]]&] (* _Vincenzo Librandi_, Aug 19 2012 *)

%o (Magma) [p: p in PrimesUpTo(15000) | p mod 37 eq 23 ]; // _Vincenzo Librandi_, Aug 19 2012

%o (PARI) is(n)=isprime(n) && n%37==23 \\ _Charles R Greathouse IV_, Jul 02 2016

%Y Cf. A000040, A142130, A142131.

%K nonn,easy

%O 1,1

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

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Last modified April 25 14:35 EDT 2024. Contains 371989 sequences. (Running on oeis4.)