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Number of nX5 binary arrays with each element equal to either the sum mod 2 of its horizontal and vertical neighbors or the sum mod 2 of its diagonal and antidiagonal neighbors
1

%I #5 Mar 31 2012 12:35:52

%S 6,56,427,3504,24194,182372,1381491,10466773,79423818,600709200,

%T 4550933271,34480495702,261239635498,1979327039007,14995859240422,

%U 113615702760034,860807922261491,6521895841826419,49413060667357746

%N Number of nX5 binary arrays with each element equal to either the sum mod 2 of its horizontal and vertical neighbors or the sum mod 2 of its diagonal and antidiagonal neighbors

%C Column 5 of A183517

%H R. H. Hardin, <a href="/A183513/b183513.txt">Table of n, a(n) for n = 1..176</a>

%e Some solutions for 3X5

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 05 2011