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%I #4 Jul 12 2018 11:42:03
%S 0,3,15,20,642,10850,58615,6782306,484120209,15199851129
%N Number of nXn 0..1 arrays with every element unequal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
%C Diagonal of A316757.
%e Some solutions for n=5
%e ..0..0..0..0..1. .0..1..1..0..1. .0..1..1..1..1. .0..1..0..1..0
%e ..0..1..0..0..1. .0..1..1..0..1. .0..1..1..0..1. .1..0..0..0..1
%e ..0..0..0..0..0. .1..1..1..1..1. .1..1..1..1..1. .0..0..0..0..0
%e ..1..0..0..1..0. .1..0..1..1..0. .1..1..1..1..1. .0..1..0..0..1
%e ..1..0..0..0..1. .0..1..1..1..0. .0..0..1..0..0. .0..0..0..1..0
%Y Cf. A316757.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jul 12 2018
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