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Number of 6Xn 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1

%I #4 Apr 17 2018 13:26:29

%S 32,42,186,544,2494,13597,59654,251705,1186522,5869222,27381443,

%T 126165687,604239638,2948606295,14144665365,67469024030,326726182958,

%U 1595597953024,7746571268500,37522290645262,182886057727441

%N Number of 6Xn 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Row 6 of A303040.

%H R. H. Hardin, <a href="/A303044/b303044.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

%e ..0..1..0..1..0. .0..1..0..1..0. .0..1..1..1..0. .0..0..0..1..0

%e ..0..1..0..0..0. .0..1..1..1..0. .1..1..1..1..1. .0..1..0..1..0

%e ..1..1..0..1..0. .0..1..0..1..0. .0..1..1..1..0. .0..1..0..1..1

%e ..0..1..0..1..0. .0..1..0..1..0. .0..1..0..1..0. .0..1..0..1..0

%e ..0..1..0..1..0. .0..1..0..1..0. .0..1..0..1..0. .0..1..0..1..0

%e ..0..1..1..0..0. .0..1..0..1..0. .0..1..0..0..1. .0..0..1..1..0

%Y Cf. A303040.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 17 2018