%I A007688 M3514
%S A007688 4,16,52,144,420
%N A007688 Number of 5-colorings of cyclic group of order n.
%D A007688 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A007688 R. Haas, Three-colorings of finite groups or an algebra of nonequalities, 
               Math. Mag., 63 (1990), 211-225.
%Y A007688 Sequence in context: A121184 A089093 A058234 this_sequence A100774 A107767 
               A087972
%Y A007688 Adjacent sequences: A007685 A007686 A007687 this_sequence A007689 A007690 
               A007691
%K A007688 nonn
%O A007688 1,1
%A A007688 N. J. A. Sloane (njas(AT)research.att.com).