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A142130 Primes congruent to 21 mod 37. 3

%I

%S 317,613,761,983,1279,1427,1723,1871,2389,2833,3203,3499,3943,4091,

%T 4831,5867,6089,6163,6311,6607,6829,6977,7643,7717,8087,8161,8753,

%U 9049,9419,10159,10529,10973,11047,11491,12157,12379,12527,12601,12823,13267,13711

%N Primes congruent to 21 mod 37.

%H Vincenzo Librandi, <a href="/A142130/b142130.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[21,30000,37],PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, May 11 2011 *)

%t Select[Prime[Range[5000]],MemberQ[{21},Mod[#,37]]&] (* _Vincenzo Librandi_, Aug 19 2012 *)

%o (MAGMA) [p: p in PrimesUpTo(15000) | p mod 37 eq 21 ]; // _Vincenzo Librandi_, Aug 19 2012

%o (PARI) is(n)=isprime(n) && n%37==21 \\ _Charles R Greathouse IV_, Jul 02 2016

%Y Cf. A000040, A142128, A142129.

%K nonn,easy

%O 1,1

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

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Last modified October 16 17:49 EDT 2019. Contains 328102 sequences. (Running on oeis4.)