%I #9 Sep 08 2022 08:45:37
%S 13,257,379,1721,2087,2819,3307,3673,3917,4283,4649,5381,5503,5869,
%T 6113,6967,7211,7333,7577,7699,8431,9041,10139,10627,10993,11969,
%U 12457,12823,13799,13921,14653,14897,15263,15629,16361,17093,17581,18191,18313,18679
%N Primes congruent to 13 mod 61.
%H Vincenzo Librandi, <a href="/A142811/b142811.txt">Table of n, a(n) for n = 1..1000</a>
%t Select[Prime[Range[2400]], MemberQ[{13}, Mod[#, 61]] &] (* _Vincenzo Librandi_, Sep 05 2012 *)
%t Select[Range[13,20000,61],PrimeQ] (* _Harvey P. Dale_, Aug 06 2019 *)
%o (Magma) [p: p in PrimesUpTo(19000) | p mod 61 eq 13 ]; // _Vincenzo Librandi_, Sep 05 2012
%Y Cf. A000040.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Jul 11 2008