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