%I #9 Sep 08 2022 08:45:36
%S 367,1109,1321,1427,2063,2381,2593,2699,3229,3547,4289,5879,6091,6197,
%T 6833,7151,7681,8317,8423,8741,9059,9377,9907,10331,10861,11497,12239,
%U 12451,13723,13829,14783,15101,15313,15737,16267,16691,16903,17327,17539,18493
%N Primes congruent to 49 mod 53.
%H Vincenzo Librandi, <a href="/A142579/b142579.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[{49}, Mod[#, 53]] &] (* _Vincenzo Librandi_, Aug 30 2012 *)
%o (Magma) [p: p in PrimesUpTo(20000) | p mod 53 eq 49]; // _Vincenzo Librandi_, Ayg 30 2012
%o (PARI) is(n)=isprime(n) && n%53==49 \\ _Charles R Greathouse IV_, Jul 04 2016
%Y Cf. A000040.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Jul 11 2008