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%I #4 Apr 27 2018 10:15:46
%S 0,5,3,22,66,394,1417,7706,33066,162051,742361,3551493,16462120,
%T 78105973,365231748,1722636470,8082828137,38044302672,178718778290,
%U 840640740209,3950836581073,18577968343323,87329775332631,410598309192529
%N Number of nX6 0..1 arrays with every element unequal to 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
%C Column 6 of A303636.
%H R. H. Hardin, <a href="/A303634/b303634.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..0..1..0. .0..1..0..1..0..1. .0..1..0..1..0..1
%e ..1..0..0..1..1..0. .1..0..0..1..0..1. .1..0..0..1..1..0. .1..0..1..1..0..0
%e ..0..1..0..1..0..1. .0..1..1..1..0..0. .0..1..1..0..0..1. .1..0..1..0..1..1
%e ..0..1..1..0..0..1. .0..1..0..0..1..1. .1..0..0..1..1..0. .0..1..1..0..1..0
%e ..1..0..0..1..1..0. .1..0..1..0..1..0. .0..1..0..1..0..1. .1..0..0..1..0..1
%Y Cf. A303636.
%K nonn
%O 1,2
%A _R. H. Hardin_, Apr 27 2018