A206869 - OEIS

%I #5 Mar 31 2012 12:37:14

%S 44,1936,31529,502864,8942469,159327093,2805723059,49382253588,

%T 870161983686,15335126811127,270230133940648,4761777405210821,

%U 83908473333577949,1478577785507810905,26054511301483619894

%N Number of nX6 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically

%C Column 6 of A206871

%H R. H. Hardin, <a href="/A206869/b206869.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 13 2012