%I
%S 1,3,13,66,445,5715,76642,2150420,124691962,17216491876
%N Number of n X n 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
%C Diagonal of A302309.
%e Some solutions for n=5
%e ..0..1..0..0..1. .0..1..0..0..1. .0..0..1..0..1. .0..1..0..1..1
%e ..1..1..0..1..0. .0..1..0..1..0. .1..1..1..0..0. .0..1..1..0..1
%e ..0..1..0..1..0. .0..1..0..1..0. .0..0..0..0..0. .1..0..1..0..1
%e ..0..1..0..1..1. .0..1..0..1..0. .0..1..0..0..1. .1..0..1..0..1
%e ..1..0..0..1..0. .0..0..0..1..0. .0..1..1..1..1. .1..0..1..0..1
%Y Cf. A302309.
%K nonn
%O 1,2
%A _R. H. Hardin_, Apr 05 2018
