%I A152079
%S A152079 3,5,17,23,29,43,47,53,61,83,107,139,149,151,173,179,181,191,229,233,
%T A152079 239,257,263,269,277
%N A152079 a(n) are primes for which A000695(a(n)) are also primes.
%C A152079 Numbers a(n) are in A077718. Conjecture. The sequence contains infinitely 
               many terms.
%Y A152079 A000695 A077718 A152021 A152022 A152023 A152078
%Y A152079 Sequence in context: A038891 A020592 A152078 this_sequence A027699 A153417 
               A069687
%Y A152079 Adjacent sequences: A152076 A152077 A152078 this_sequence A152080 A152081 
               A152082
%K A152079 nonn
%O A152079 1,1
%A A152079 Vladimir Shevelev (shevelev(AT)bgu.ac.il), Nov 23 2008