A206877 - OEIS

%I #6 Dec 18 2015 18:18:00

%S 2,16,230,6478,472412,87541530,37121455086,35861331864570,

%T 81188767942820548,433324879893854403222,5417399373066905672590966,

%U 158241198424834434935170407538,10811858970416460513671922192330804

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

%C Diagonal of A206883

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 13 2012