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%I #4 Jul 25 2018 11:15:38
%S 1,4,13,498,31878,3234635,1396521994,1165304769027,2212187815200032
%N Number of nXn 0..1 arrays with every element unequal to 0, 2, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
%C Diagonal of A317271.
%e Some solutions for n=5
%e ..0..1..0..1..1. .0..1..1..1..0. .0..1..0..1..1. .0..1..1..1..1
%e ..0..1..1..0..0. .1..0..0..0..1. .1..0..0..0..0. .1..0..1..0..0
%e ..0..0..0..1..0. .1..1..1..1..1. .0..0..0..1..0. .1..1..1..1..1
%e ..1..0..0..0..1. .0..1..1..0..0. .0..1..0..1..1. .0..1..1..0..1
%e ..0..1..1..0..1. .1..0..0..1..1. .0..1..0..0..0. .1..0..1..1..0
%Y Cf. A317271.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jul 25 2018