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%I #4 May 02 2018 08:04:16
%S 5,1145,3420,39711,200144,1541443,9758243,68015993,462257363,
%T 3129826391,21703155196,147148586804,1017951482338,6966704502733,
%U 47967810896265,330173281171357,2270469305923316,15652931333829738,107730579365994677
%N Number of nX6 0..1 arrays with every element unequal to 1, 2, 3 or 4 king-move adjacent elements, with upper left element zero.
%C Column 6 of A303896.
%H R. H. Hardin, <a href="/A303894/b303894.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..1..1..0..0..1. .0..1..1..1..0..1. .0..0..1..1..0..1. .0..1..1..0..0..1
%e ..0..1..1..0..0..1. .0..0..1..1..1..0. .0..1..1..1..0..0. .0..0..1..1..0..0
%e ..1..0..0..1..1..0. .1..0..0..0..0..1. .1..1..1..1..0..0. .0..0..0..1..1..0
%e ..0..0..0..1..1..1. .1..0..0..0..1..0. .1..1..1..0..0..1. .1..0..0..1..1..0
%e ..1..0..0..1..1..0. .0..0..1..1..1..1. .0..0..0..0..0..1. .1..1..0..1..1..1
%Y Cf. A303896.
%K nonn
%O 1,1
%A _R. H. Hardin_, May 02 2018
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