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%I #12 Sep 08 2022 08:44:56
%S 5,11,19,47,53,61,67,89,103,109,131,137,151,173,179,193,229,257,263,
%T 271,277,313,347,383,389,397,431,439,467,487,509,523,557,571,593,599,
%U 607,613,641,677,683,691,719,733
%N Primes congruent to {4, 5} mod 7.
%H Vincenzo Librandi, <a href="/A045452/b045452.txt">Table of n, a(n) for n = 1..1000</a>
%t Select[Prime[Range[200]],MemberQ[{4,5},Mod[#,7]]&] (* _Vincenzo Librandi_, Aug 13 2012 *)
%t Select[Flatten[{#+4,#+5}&/@(7*Range[0,150])],PrimeQ] (* _Harvey P. Dale_, Dec 27 2021 *)
%o (Magma) [ p: p in PrimesUpTo(1000) | p mod 7 in {4, 5} ]; // _Vincenzo Librandi_, Aug 13 2012
%Y Cf. A000040.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_
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