A207092 - OEIS

%I #5 Mar 31 2012 12:37:15

%S 33,1089,20953,518001,12462017,289951889,6897033117,163328551845,

%T 3859116053775,91371814060913,2162098249763885,51154844975987973,

%U 1210540438174818673,28644458404800644097,677799353119887717715

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

%C Row 6 of A207088

%H R. H. Hardin, <a href="/A207092/b207092.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 15 2012