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%I #4 Apr 21 2018 12:45:40
%S 5,5,17,36,74,165,361,783,1710,3744,8176,17851,39009,85239,186206,
%T 406800,888794,1941803,4242301,9268393,20249240,44239542,96652372,
%U 211161719,461336399,1007905991,2202025876,4810883806,10510594448,22963055655
%N Number of nX4 0..1 arrays with every element equal to 0, 1, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
%C Column 4 of A303314.
%H R. H. Hardin, <a href="/A303310/b303310.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = a(n-1) +a(n-2) +3*a(n-3) +2*a(n-4) -a(n-5) -2*a(n-6) -a(n-7) for n>10
%e Some solutions for n=5
%e ..0..0..0..1. .0..1..1..1. .0..1..0..0. .0..1..0..1. .0..1..1..1
%e ..0..1..0..1. .0..1..0..1. .0..1..1..1. .0..0..0..1. .0..1..0..1
%e ..0..1..0..1. .0..0..0..1. .0..1..0..1. .0..1..0..1. .0..1..0..1
%e ..0..1..0..1. .0..1..1..1. .0..1..0..1. .0..1..1..1. .0..1..0..1
%e ..0..1..0..1. .0..1..0..0. .0..1..0..1. .0..1..0..0. .0..0..0..1
%Y Cf. A303314.
%K nonn
%O 1,1
%A _R. H. Hardin_, Apr 21 2018
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