%I A047943
%S A047943 1,8,1044,33562880,70368748374016,9444732965876730429440,
%T A047943 81129638414606686199388699623424,
%U A047943 44601490397061246283080881278262737180295168
%N A047943 Number of 8-colorings of an n X n grid, up to rotational symmetry.
%F A047943 a(n) = (m^(n^2) + 2 m^((n^2 + 3 (n mod 2))/4) + m^((n^2 + (n mod 2))/
               2))/4, with m = 8
%Y A047943 Cf. A047937-A047945.
%Y A047943 Sequence in context: A122067 A076688 A004808 this_sequence A089672 A003767 
               A117084
%Y A047943 Adjacent sequences: A047940 A047941 A047942 this_sequence A047944 A047945 
               A047946
%K A047943 nonn
%O A047943 0,2
%A A047943 Robert W. Pratt (Rob.Pratt(AT)sas.com)