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Half the number of nX7 binary arrays with the number of 1-1 horizontal, vertical, diagonal and antidiagonal adjacencies equal to the number of 0-0 adjacencies
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%I #5 Mar 31 2012 12:35:50

%S 10,756,9746,5358022,174883800,60444425412,2929353057775,

%T 768160567979820,47876202708400536,10382143445060064080,

%U 771704842790704284567,145964939271715586750070,12337676708848223976794880

%N Half the number of nX7 binary arrays with the number of 1-1 horizontal, vertical, diagonal and antidiagonal adjacencies equal to the number of 0-0 adjacencies

%C Column 7 of A183289

%H R. H. Hardin, <a href="/A183288/b183288.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 3X7 with a(1,1)=0

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 03 2011