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Primes congruent to {0, 1, 5} mod 7.
1

%I #10 Sep 08 2022 08:44:56

%S 5,7,19,29,43,47,61,71,89,103,113,127,131,173,197,211,229,239,257,271,

%T 281,313,337,379,383,397,421,439,449,463,467,491,509,523,547,593,607,

%U 617,631,659,673,677,691,701,719

%N Primes congruent to {0, 1, 5} mod 7.

%H Vincenzo Librandi, <a href="/A045446/b045446.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[200]],MemberQ[{0,1,5},Mod[#,7]]&] (* _Vincenzo Librandi_, Aug 13 2012 *)

%o (Magma) [ p: p in PrimesUpTo(1000) | p mod 7 in {0, 1, 5} ]; // _Vincenzo Librandi_, Aug 13 2012

%Y Cf. A000040.

%K nonn,easy

%O 1,1

%A _N. J. A. Sloane_