A207549 - OEIS

%I #5 Mar 31 2012 12:37:18

%S 1791,3207681,3434478282,3444706587880,3281119335987704,

%T 3082694275519480041,2876868686935789680075,2678620674955838194068380,

%U 2491610702126355619980595983,2316819788394652271932508770307

%N Number of nX7 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 Column 7 of A207550

%H R. H. Hardin, <a href="/A207549/b207549.txt">Table of n, a(n) for n = 1..124</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 18 2012