%I #7 Sep 08 2022 08:45:37
%S 83,461,587,839,1091,1217,1721,1847,1973,2099,2351,2477,2729,3359,
%T 3863,3989,4241,4493,4871,5501,5879,6131,6257,6761,7013,7517,7643,
%U 8147,8273,9029,9281,9533,10037,10163,10289,10667,11171,11423,11549,11801,11927,12809
%N Primes congruent to 20 mod 63.
%H Vincenzo Librandi, <a href="/A142900/b142900.txt">Table of n, a(n) for n = 1..1000</a>
%t Select[Prime[Range[1900]], MemberQ[{20}, Mod[#, 63]] &] (* _Vincenzo Librandi_, Sep 06 2012 *)
%o (Magma) [p: p in PrimesUpTo(13000) | p mod 63 eq 20 ] ; // _Vincenzo Librandi_, Sep 06 2012
%Y Cf. A000040.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Jul 11 2008