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%I #4 Jun 24 2018 16:40:57
%S 1,16,60,197,816,3421,13488,54585,222050,896928,3628145,14702693,
%T 59523873,240964415,975799703,3951226107,15998479918,64780965677,
%U 262310632650,1062132574354,4300748194584,17414464996336,70513993015956
%N Number of nX3 0..1 arrays with every element unequal to 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
%C Column 3 of A316130.
%H R. H. Hardin, <a href="/A316125/b316125.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 3*a(n-1) +4*a(n-2) +12*a(n-3) -25*a(n-4) -79*a(n-5) -35*a(n-6) +82*a(n-7) +219*a(n-8) +105*a(n-9) -20*a(n-10) -245*a(n-11) -206*a(n-12) -64*a(n-13) +38*a(n-14) +162*a(n-15) +97*a(n-16) +46*a(n-17) +18*a(n-18) -16*a(n-19) -8*a(n-20) for n>21
%e Some solutions for n=5
%e ..0..0..0. .0..1..0. .0..1..0. .0..0..1. .0..0..0. .0..1..1. .0..1..0
%e ..1..1..1. .1..1..1. .0..0..0. .1..0..0. .0..1..0. .0..0..1. .1..0..1
%e ..1..1..1. .1..1..1. .0..0..0. .0..0..0. .0..1..1. .1..1..1. .1..0..1
%e ..0..0..1. .1..0..0. .0..1..0. .0..1..0. .0..0..1. .1..1..1. .1..0..1
%e ..1..0..0. .1..1..0. .0..0..1. .0..1..1. .1..0..1. .0..0..0. .0..1..1
%Y Cf. A316130.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jun 24 2018
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