%I A023222
%S A023222 2,5,11,17,29,31,37,61,67,71,89,101,109,127,137,167,181,191,199,229,241,
%T A023222 257,269,277,281,311,331,337,347,359,379,389,397,419,431,457,491,499,509,
%U A023222 541,571,577,587,601,617,631,641,647,691,709,739,751,757,769,787,797,809
%N A023222 Numbers n such that n and 6n + 7 both prime.
%Y A023222 Sequence in context: A157421 A038390 A048210 this_sequence A007491 A124850 
               A156850
%Y A023222 Adjacent sequences: A023219 A023220 A023221 this_sequence A023223 A023224 
               A023225
%K A023222 nonn
%O A023222 1,1
%A A023222 David W. Wilson (davidwwilson(AT)comcast.net)