%I #4 Jul 15 2018 14:09:39

%S 1,4,37,452,18847,1187727,180224021,79732305036,91692297769706

%N Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

%C Diagonal of A316883.

%e Some solutions for n=5

%e ..0..0..0..0..0. .0..0..0..1..1. .0..1..0..1..0. .0..0..1..0..0

%e ..0..0..0..0..0. .0..0..0..1..1. .0..0..0..0..0. .0..1..0..0..0

%e ..1..0..1..0..0. .1..0..0..0..1. .0..0..0..0..0. .0..1..0..1..0

%e ..0..0..0..1..0. .1..0..0..0..1. .1..0..1..0..0. .1..1..1..0..1

%e ..0..0..0..0..1. .0..0..0..0..0. .1..0..1..0..0. .1..1..1..1..1

%Y Cf. A316883.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jul 15 2018