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%I #4 Nov 29 2017 06:52:08
%S 7,80,467,3472,26544,190943,1406191,10368395,76065766,559211037,
%T 4111221322,30212555454,222067156015,1632220938953,11996626285105,
%U 88175181043436,648086759944753,4763418970827514,35011041414972132
%N Number of nX4 0..1 arrays with each 1 adjacent to 1 or 2 king-move neighboring 1s.
%C Column 4 of A295847.
%H R. H. Hardin, <a href="/A295843/b295843.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 6*a(n-1) +6*a(n-2) +47*a(n-3) -138*a(n-4) +33*a(n-5) +55*a(n-6) -397*a(n-7) -225*a(n-8) +305*a(n-9) -243*a(n-10) -191*a(n-11) +206*a(n-12) -56*a(n-13) -26*a(n-14) +21*a(n-15) +2*a(n-16)
%e Some solutions for n=6
%e ..0..0..1..0. .0..0..0..0. .0..0..0..1. .0..0..0..0. .0..0..0..0
%e ..0..0..1..0. .0..0..0..0. .1..0..1..0. .1..0..0..1. .0..1..0..1
%e ..0..0..1..0. .0..1..1..0. .1..0..0..0. .0..1..0..1. .1..0..1..0
%e ..0..0..0..0. .0..0..0..0. .1..0..1..1. .1..0..0..1. .0..0..0..0
%e ..0..1..0..1. .1..1..0..0. .1..0..0..0. .0..0..0..1. .0..0..1..0
%e ..1..0..1..0. .1..0..0..0. .1..0..0..0. .1..1..0..0. .0..1..0..1
%Y Cf. A295847.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 29 2017
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