%I A032617
%S A032617 1,7,9,27,37,45,49,51,55,61,69,75,105,109,115,117,121,151,159,181,
%T A032617 187,195,201,211,217,225,247,271,277,285,289,291,301,309,319,321,
%U A032617 331,337,339,357,361,367,381,391,399,405,417,421,427,429,435,439
%N A032617 Numbers n such that n concatenated with n + 2 is a prime.
%Y A032617 Cf. A032607.
%Y A032617 Sequence in context: A102028 A125260 A104703 this_sequence A113124 A030404 
               A066930
%Y A032617 Adjacent sequences: A032614 A032615 A032616 this_sequence A032618 A032619 
               A032620
%K A032617 nonn
%O A032617 1,2
%A A032617 Patrick De Geest (pdg(AT)worldofnumbers.com), May 15, 1998.