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%I #5 Mar 31 2012 12:37:18
%S 1791,3207681,3323115736,3168082336959,3054158366460488,
%T 2964756265273648883,2876868686935789680075,2790347210410991592878863,
%U 2705587415313932036439553600,2623332913249978851468865268215
%N Number of 7Xn 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal
%C Row 7 of A207550
%H R. H. Hardin, <a href="/A207555/b207555.txt">Table of n, a(n) for n = 1..28</a>
%e Some solutions for n=4
%e ..0..2..2..1....2..1..0..2....0..2..2..2....0..1..1..2....0..2..0..2
%e ..1..2..2..1....1..2..2..1....1..1..0..2....0..1..0..1....2..2..0..2
%e ..0..0..1..1....1..0..1..1....0..0..1..0....2..2..0..0....2..0..1..0
%e ..2..1..1..0....0..0..2..0....1..2..0..2....0..2..2..0....0..2..1..0
%e ..1..0..0..1....0..2..0..0....1..0..2..0....0..1..0..1....2..1..2..1
%e ..1..2..0..0....0..1..0..0....1..0..0..0....1..2..0..0....2..2..1..0
%e ..2..2..1..2....1..2..0..0....2..1..0..0....1..2..2..2....0..2..2..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 18 2012
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