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%I #9 Apr 14 2021 22:28:21
%S 1,8,1044,33562880,70368748374016,9444732965876730429440,
%T 81129638414606686199388699623424,
%U 44601490397061246283080881278262737180295168,1569275433846670190958947355821723644654155086251882971136
%N Number of 8-colorings of an n X n grid, up to rotational symmetry.
%H Andrew Howroyd, <a href="/A047943/b047943.txt">Table of n, a(n) for n = 0..25</a>
%F 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 Column k=8 of A343095.
%Y Cf. A047937.
%K nonn
%O 0,2
%A _Rob Pratt_
%E Terms a(8) and beyond from _Andrew Howroyd_, Apr 14 2021
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