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%I #5 Mar 31 2012 12:37:00
%S 13,396,16723,601521,22100882,817293052,30104480870,1109867821460,
%T 40918040450898,1508399380147856,55608018263653107,
%U 2050003686321969840,75573742529524147667,2786045396078461420336,102708210001323641444431
%N Number of nX5 0..2 arrays with every 1 immediately preceded by 0 to the left or above, and every 2 immediately preceded by 0 1 to the left or above
%C Column 5 of A203975
%H R. H. Hardin, <a href="/A203972/b203972.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..0..0..0..0..1....0..1..0..1..0....0..0..0..0..1....0..0..0..0..0
%e ..1..1..1..0..1....0..1..2..0..0....0..1..1..1..0....0..1..2..1..0
%e ..2..0..0..1..2....1..0..0..0..0....1..2..0..0..1....0..0..1..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 08 2012