%I #5 Mar 31 2012 12:36:57
%S 1,209,29677,2527020,231588325,22078482448,2078403848722,
%T 195550611728699,18462917498925709,1743348624980118002,
%U 164530017863130381978,15527422729883740377106,1465484485283794984735686
%N Number of nX6 0..2 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors
%C Column 6 of A203460
%H R. H. Hardin, <a href="/A203458/b203458.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..1..2..2..1..1..0....2..2..1..0..0..0....1..2..2..1..2..2....2..2..0..0..0..0
%e ..1..2..2..1..1..0....2..2..1..0..0..0....1..2..2..1..2..2....2..2..1..2..2..0
%e ..1..0..0..1..2..2....2..2..0..2..2..2....0..2..1..2..2..2....1..1..1..2..2..1
%e ..2..2..1..2..2..2....1..0..0..2..0..2....0..2..1..2..1..1....1..0..0..1..0..1
%e ..2..2..2..2..1..1....1..1..1..2..2..2....0..2..2..2..0..0....1..1..1..1..1..1
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 02 2012