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%I #11 Sep 08 2022 08:45:36
%S 251,463,569,887,1523,2053,2371,2477,2689,3643,4597,4703,5021,5233,
%T 5657,5869,6823,7247,7459,7883,8731,8837,9049,9473,9791,10321,10427,
%U 10639,10957,11593,11699,12547,12653,13183,14243,14561,14879,15091,15727,16363,16787
%N Primes congruent to 39 mod 53.
%H Vincenzo Librandi, <a href="/A142569/b142569.txt">Table of n, a(n) for n = 1..1000</a>
%F a(n) ~ 52n log n. - _Charles R Greathouse IV_, Jul 04 2016
%t Select[Prime[Range[2600]], MemberQ[{39}, Mod[#, 53]] &] (* _Vincenzo Librandi_, Aug 30 2012 *)
%t Select[Range[39,20000,53],PrimeQ] (* _Harvey P. Dale_, Sep 29 2013 *)
%o (Magma) [p: p in PrimesUpTo(20000) | p mod 53 eq 39]; // _Vincenzo Librandi_, Aug 30 2012
%o (PARI) is(n)=isprime(n) && n%53==39 \\ _Charles R Greathouse IV_, Jul 04 2016
%Y Cf. A000040.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Jul 11 2008
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