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1/12 the number of (n+2)X5 0..2 arrays with each 3X3 subblock containing one of one value, three of another, and five of the last
1

%I #5 Mar 31 2012 12:36:00

%S 6132,17077,50590,161097,579771,2185733,8600335,36366658,156863626,

%T 689415818,3168631633,14630695130,67976252871,325283270950,

%U 1553794150160,7427099657330,36244496322073,176177225797658,855011742964725

%N 1/12 the number of (n+2)X5 0..2 arrays with each 3X3 subblock containing one of one value, three of another, and five of the last

%C Column 3 of A184505

%H R. H. Hardin, <a href="/A184501/b184501.txt">Table of n, a(n) for n = 1..136</a>

%e Some solutions with a(1,1)=0 for 4X5

%e ..0..0..1..0..0....0..0..2..2..0....0..0..0..1..1....0..0..0..0..0

%e ..1..2..0..0..0....0..0..2..2..0....0..1..1..1..2....2..0..2..2..1

%e ..0..0..1..1..2....1..2..0..1..2....1..2..0..1..0....2..1..0..2..0

%e ..1..0..0..1..0....0..2..0..2..2....1..0..1..0..1....0..2..2..0..2

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 16 2011