%I #4 Aug 01 2018 13:35:19
%S 1,8,100,3047,218043,40015089,18167894481,20471431125281,
%T 58293522938785296
%N Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
%C Diagonal of A317604.
%e Some solutions for n=5
%e ..0..0..0..1..1. .0..1..0..0..0. .0..0..0..1..0. .0..1..0..0..0
%e ..1..1..0..0..1. .1..1..0..0..0. .0..0..0..1..1. .0..0..0..1..0
%e ..0..1..1..1..1. .1..1..1..1..1. .1..0..0..0..1. .0..1..0..0..0
%e ..1..1..1..1..0. .1..1..1..1..1. .0..0..1..0..1. .0..1..0..0..1
%e ..0..1..1..0..0. .1..1..0..1..1. .1..1..1..1..1. .1..0..0..0..0
%Y Cf. A317604.
%K nonn
%O 1,2
%A _R. H. Hardin_, Aug 01 2018