A207744 - OEIS

%I #5 Mar 31 2012 12:37:19

%S 22,484,5302,58081,733363,9259849,113534330,1392036100,17213677390,

%T 212861354161,2624875417711,32368350683761,399547127975296,

%U 4931913554477056,60855630257333632,750906862642685329

%N Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically

%C Row 6 of A207741

%H R. H. Hardin, <a href="/A207744/b207744.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 19 2012