%I A138005
%S A138005 17,41,73,97,109,113,137
%N A138005 Prime numbers n for which nontrivial cycles of the Ducci map do not all 
               have the same length.
%Y A138005 Cf. A138004.
%Y A138005 Sequence in context: A141174 A007519 A163185 this_sequence A166147 A028886 
               A146443
%Y A138005 Adjacent sequences: A138002 A138003 A138004 this_sequence A138006 A138007 
               A138008
%K A138005 nonn,more
%O A138005 1,1
%A A138005 T. D. Noe (noe(AT)sspectra.com), Feb 26 2008