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Number of n X n 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically
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%I #6 Dec 18 2015 18:18:01

%S 2,16,98,643,5348,42167,335915,2975974,27237128,254712604,2518233755,

%T 25906520150,274611244775,3028044205471,34585700854386

%N Number of n X n 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically

%C Diagonal of A207391

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 17 2012