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Number of 8Xn binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally
0

%I #4 Mar 31 2012 12:36:16

%S 177,31329,5545233,354894796,22333076803,1435483321366,94632691298302,

%T 6207537762978575,401408206411689570,25850136024684855135

%N Number of 8Xn binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally

%C Row 8 of A189905

%e Some solutions for 8X4

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

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ May 01 2011