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%I #4 Aug 05 2018 15:56:27
%S 0,1,1,3,2,4,6,14,14,22,43,68,82,147,246,360,516,888,1385,2046,3165,
%T 5185,7888,11991,18930,29960,45643,70736,111396,173435,266587,416156,
%U 650940,1008681,1561889,2439244,3797561,5886887,9150037,14265005,22165953
%N Number of nX3 0..1 arrays with every element unequal to 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
%C Column 3 of A317741.
%H R. H. Hardin, <a href="/A317736/b317736.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = -a(n-1) -a(n-2) +2*a(n-3) +7*a(n-4) +7*a(n-5) +4*a(n-6) -5*a(n-7) -10*a(n-8) -9*a(n-9) -3*a(n-10) for n>13
%e All solutions for n=5
%e ..0..1..0. .0..1..0
%e ..1..0..1. .1..1..0
%e ..0..0..1. .0..1..1
%e ..1..0..0. .0..1..0
%e ..1..0..1. .1..0..1
%Y Cf. A317741.
%K nonn
%O 1,4
%A _R. H. Hardin_, Aug 05 2018
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