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Number of (n+2)X6 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..2 introduced in row major order
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%I #5 Mar 31 2012 12:37:03

%S 12188762,3254488094,903927237183,214490839140374,54207812128671655,

%T 13752971461490455159,3440854841508866322669,865571456966588050609608,

%U 217822622513813915869955662,54748276696335921093975563763

%N Number of (n+2)X6 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..2 introduced in row major order

%C Column 4 of A204889

%H R. H. Hardin, <a href="/A204888/b204888.txt">Table of n, a(n) for n = 1..12</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 20 2012