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%I #4 Oct 28 2013 08:17:40
%S 1172,21076,1025430,17497342,801845362,13663471254,625553036008,
%T 10652997961328,487784854592488,8305829325372360,380324726478587580,
%U 6475874805604555424,296532282288946047888,5049115344840115896488
%N Number of (n+3)X(6+3) 0..2 white square subarrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero
%C Column 6 of A230708
%H R. H. Hardin, <a href="/A230706/b230706.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=2
%e ..0..x..0..x..0..x..1..x..1....0..x..0..x..1..x..1..x..2
%e ..x..1..x..1..x..2..x..2..x....x..1..x..2..x..2..x..0..x
%e ..0..x..2..x..1..x..0..x..1....2..x..1..x..0..x..2..x..1
%e ..x..1..x..0..x..0..x..1..x....x..0..x..2..x..1..x..2..x
%e ..0..x..2..x..2..x..2..x..0....2..x..2..x..0..x..0..x..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Oct 28 2013
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