%I
%S 1,4,3,63,507,2466,111137,5833295,281897638,75712523939
%N Number of n X n 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 kingmove adjacent elements, with upper left element zero.
%C Diagonal of A298320.
%e Some solutions for n=7
%e ..0..1..0..1..0..1..0. .0..1..0..1..1..1..0. .0..1..0..0..1..0..0
%e ..1..0..0..0..0..0..1. .1..1..1..0..1..1..0. .1..0..0..0..1..0..0
%e ..1..1..0..1..0..1..1. .1..0..0..0..0..0..0. .0..0..0..1..1..0..1
%e ..1..0..0..0..0..0..1. .1..1..1..0..1..1..0. .0..1..0..0..1..0..1
%e ..1..0..0..0..1..1..0. .1..1..1..0..1..1..0. .0..1..0..1..1..0..0
%e ..1..1..0..1..0..1..1. .1..0..0..1..0..0..0. .1..1..0..0..1..0..1
%e ..0..1..1..1..1..1..1. .0..1..0..0..1..0..1. .1..1..0..0..1..0..1
%Y Cf. A298320.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jan 17 2018
