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Number of nX7 0..2 arrays avoiding the pattern z-2 z-1 z in any row or column
1

%I #5 Mar 31 2012 12:37:12

%S 1791,3207681,4428597297,6043775871265,8149739471342829,

%T 10977508218092030949,14777630573426014735558,

%U 19891697466939518338949937,26774752595905814904083950218,36039345751281018973667189182614

%N Number of nX7 0..2 arrays avoiding the pattern z-2 z-1 z in any row or column

%C Column 7 of A206700

%H R. H. Hardin, <a href="/A206699/b206699.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 11 2012