%I #4 Mar 21 2018 11:44:49
%S 8,128,1708,23672,327848,4543028,62956480,872451104,12090455460,
%T 167549990744,2321914313636,32177179696056,445912620471852,
%U 6179474617725600,85635402098610152,1186738767676838336
%N Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
%C Column 4 of A301443.
%H R. H. Hardin, <a href="/A301439/b301439.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 16*a(n-1) -28*a(n-2) -26*a(n-3) +40*a(n-4) -37*a(n-5) -61*a(n-6) +30*a(n-7) +36*a(n-8) +25*a(n-9) +5*a(n-10) +a(n-11)
%e Some solutions for n=5
%e ..0..0..0..0. .0..0..0..0. .0..0..0..1. .0..0..0..0. .0..0..0..1
%e ..0..1..1..1. .0..1..1..1. .0..1..0..1. .0..1..1..0. .0..0..1..1
%e ..1..1..0..0. .1..0..0..1. .1..1..0..0. .0..1..1..1. .1..0..1..0
%e ..1..0..1..0. .0..0..1..0. .0..1..0..0. .0..1..0..1. .1..0..1..0
%e ..1..1..0..1. .1..1..1..0. .1..0..1..0. .1..0..0..0. .0..1..1..1
%Y Cf. A301443.
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 21 2018
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