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Number of (n+2)X(4+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically
1

%I #4 Jan 11 2015 08:06:05

%S 6932,9876,17608,54688,143080,345304,922004,2750948,7532104,19629020,

%T 54002636,156395176,431245644,1157344788,3200744100,9082171160,

%U 25099285504,68356417780,189256505056,530927271980,1468646504672

%N Number of (n+2)X(4+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically

%C Column 4 of A253740

%H R. H. Hardin, <a href="/A253736/b253736.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 11 2015