%I
%S 0,3,72,5362,1396701,1248976325,3830408271334,40336079370455720,
%T 1458512970584631160987,181083690540906210546159511,
%U 77197439558945056115280452740665
%N Number of n X n 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
%C Diagonal of A300973.
%e Some solutions for n=5
%e ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
%e ..0..1..1..1..0. .0..0..1..0..0. .0..0..0..1..1. .1..0..1..0..0
%e ..1..0..0..0..1. .1..0..1..1..0. .1..1..0..1..0. .1..1..0..1..0
%e ..1..1..1..0..1. .1..1..0..1..0. .0..1..0..1..0. .1..1..1..0..1
%e ..1..1..0..0..0. .1..0..1..1..0. .0..0..0..1..1. .1..0..0..1..1
%Y Cf. A300973.
%K nonn
%O 1,2
%A _R. H. Hardin_, Mar 17 2018
