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%I #4 May 27 2018 17:43:32
%S 16,120,108,253,757,2050,5958,17002,49275,142734,414039,1202260,
%T 3491206,10141687,29461836,85594654,248682102,722521492,2099237868,
%U 6099225999,17721044395,51487829975,149596113978,434646575675,1262851676336
%N Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 3 or 8 king-move adjacent elements, with upper left element zero.
%C Column 5 of A305230.
%H R. H. Hardin, <a href="/A305227/b305227.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 4*a(n-1) -a(n-2) -7*a(n-3) +5*a(n-5) +7*a(n-7) -4*a(n-8) -3*a(n-9) -a(n-10) +a(n-12) for n>16
%e Some solutions for n=5
%e ..0..0..0..0..1. .0..0..0..0..1. .0..1..1..1..0. .0..0..0..0..0
%e ..0..0..1..0..0. .0..1..0..0..0. .1..1..1..0..0. .0..0..0..0..0
%e ..0..0..0..0..0. .0..0..0..0..1. .1..1..0..0..0. .0..0..0..0..0
%e ..1..0..0..1..0. .0..0..0..1..1. .1..0..0..0..1. .0..1..0..1..0
%e ..1..1..0..0..0. .1..0..1..1..1. .0..0..0..1..1. .0..0..0..0..0
%Y Cf. A305230.
%K nonn
%O 1,1
%A _R. H. Hardin_, May 27 2018
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