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%I
%S 1,4,13,498,31843,3176303,1284005626,1028875496355,1754773074616835
%N Number of nXn 0..1 arrays with every element unequal to 0, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
%C Diagonal of A306136.
%e Some solutions for n=5
%e ..0..1..0..1..0. .0..1..0..0..1. .0..0..1..0..1. .0..1..0..0..1
%e ..0..1..0..0..1. .0..1..1..0..0. .1..1..0..0..1. .0..1..1..0..0
%e ..1..0..0..0..0. .0..1..1..0..1. .1..1..1..0..0. .1..0..1..1..0
%e ..1..0..0..1..0. .0..1..1..1..1. .0..0..1..1..0. .0..1..1..0..1
%e ..0..1..1..0..1. .1..0..1..0..0. .1..1..1..0..1. .0..1..1..0..1
%Y Cf. A306136.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jun 22 2018
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