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Number of n X n binary arrays without the pattern 0 0 1 diagonally, vertically or antidiagonally
1

%I #7 Dec 18 2015 18:17:38

%S 2,16,292,11637,862652,140346362,43645304766,30140493826752,

%T 41065086729341527,123548887542841478730,745009928964016992782018,

%U 9811185735768630724517609865,262092653227176839857198569967286

%N Number of n X n binary arrays without the pattern 0 0 1 diagonally, vertically or antidiagonally

%C Diagonal of A189696

%H R. H. Hardin, <a href="/A189689/b189689.txt">Table of n, a(n) for n = 1..14</a>

%e Some solutions for 3X3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 25 2011