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%I #4 Jul 23 2018 19:38:34
%S 1,4,23,959,127358,53479785,66735041323,247944910114486,
%T 2724578446333546605
%N Number of nXn 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
%C Diagonal of A317215.
%e Some solutions for n=5
%e ..0..0..1..1..1. .0..1..1..1..0. .0..0..0..1..0. .0..0..1..0..1
%e ..1..1..0..0..0. .0..1..1..1..0. .1..1..1..1..0. .1..1..0..0..1
%e ..0..0..1..0..0. .1..0..1..0..0. .1..0..0..1..0. .0..0..1..0..0
%e ..0..1..1..1..1. .0..1..0..1..1. .1..0..0..1..1. .1..0..0..0..1
%e ..0..1..0..0..0. .1..0..1..0..0. .1..0..1..1..0. .1..0..1..0..1
%Y Cf. A317215.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jul 23 2018