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%I #4 Jun 10 2018 09:39:22
%S 1,8,81,1481,51586,3492739,453853629,113299205109,54481875961523
%N Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
%C Diagonal of A305776.
%e Some solutions for n=5
%e ..0..1..1..1..0. .0..0..1..0..1. .0..1..0..0..0. .0..0..1..0..0
%e ..1..1..0..0..1. .0..1..0..1..0. .0..0..0..1..0. .1..0..0..0..0
%e ..0..0..0..1..1. .0..1..1..0..0. .0..0..1..0..0. .0..0..0..0..1
%e ..0..0..1..0..0. .0..1..0..1..0. .0..1..1..0..0. .0..0..0..0..0
%e ..0..0..0..0..0. .0..0..1..0..1. .1..1..1..1..1. .1..0..1..0..0
%Y Cf. A305776.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jun 10 2018