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%I #5 Mar 31 2012 12:37:02
%S 12809,12861,23851,44712,85756,169432,331723,640841,1254717,2491262,
%T 4987056,10038749,20323399,41251315,83846977,170847335,348525500,
%U 711463790,1455076644,2977871038,6096358186,12500137174,25643281058
%N Number of (n+2)X8 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly one way, and new values 0..1 introduced in row major order
%C Column 6 of A204492
%H R. H. Hardin, <a href="/A204490/b204490.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = a(n-1) +a(n-2) +9*a(n-3) -5*a(n-4) -10*a(n-5) -7*a(n-6) -28*a(n-7) +16*a(n-8) -9*a(n-9) +40*a(n-10) +5*a(n-11) +2*a(n-12) +16*a(n-13) -19*a(n-14) +10*a(n-15) -20*a(n-16) +3*a(n-17) -2*a(n-18) -5*a(n-19) +4*a(n-20) -2*a(n-21) +a(n-22) for n>33
%e Some solutions for n=3
%e ..0..0..1..1..1..0..0..1....0..0..1..0..1..0..1..0....0..0..1..1..0..0..0..1
%e ..0..1..0..0..1..1..0..0....1..1..1..1..0..1..0..1....0..1..1..0..1..1..0..0
%e ..1..1..1..0..0..1..1..0....1..0..0..1..1..0..1..0....1..0..1..1..0..1..1..1
%e ..1..0..1..1..0..0..1..1....0..1..0..0..1..1..0..1....1..0..0..1..1..0..1..0
%e ..0..1..0..1..1..1..0..1....0..1..1..1..0..1..1..0....1..1..0..0..1..1..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 15 2012
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