%I A069161
%S A069161 2,3,5,7,11,13,15,17,19,23,29,31,33,35,37,41,43,45,47,51,53,59,61
%N A069161 Numbers n such that no group of order n can be a central factor.
%Y A069161 This is the complement of A051234.
%Y A069161 Except for the number 1 this sequence contains A003277.
%Y A069161 Sequence in context: A072697 A090421 A102553 this_sequence A003277 A117287 
               A121615
%Y A069161 Adjacent sequences: A069158 A069159 A069160 this_sequence A069162 A069163 
               A069164
%K A069161 nonn
%O A069161 1,1
%A A069161 Sharon Sela (sharonsela(AT)hotmail.com), Apr 09 2002