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Number of (6+1)X(n+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero
1

%I #8 Nov 22 2013 09:58:42

%S 233,12649,780922,62897985,5055954492,400571676322,31805180533255,

%T 2525538536966177,200540005858196485,15923668252055955019,

%U 1264405925465429453283,100399102965152775485203

%N Number of (6+1)X(n+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero

%C Row 6 of A232316

%H R. H. Hardin, <a href="/A232322/b232322.txt">Table of n, a(n) for n = 1..210</a>

%e Some.solutions.for.n=2

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 22 2013