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Number of nX7 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal
0

%I #4 Mar 31 2012 12:37:13

%S 14124,199487376,1745398353572,15877946803718090,

%T 141405314141528391344,1266270368466567536724535

%N Number of nX7 0..3 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 A206838

%e Some solutions for n=5

%e ..1..3..1..1..0..1..3....1..2..2..1..2..1..2....1..0..1..3..1..0..2

%e ..0..1..3..1..0..1..1....1..3..1..0..1..3..2....1..0..1..3..1..1..1

%e ..0..2..1..3..1..3..1....1..3..3..2..3..2..1....2..3..1..0..3..1..1

%e ..0..1..3..0..0..3..3....0..0..2..0..0..2..1....2..0..3..0..1..3..0

%e ..0..0..3..1..0..0..2....3..0..0..1..0..0..0....1..0..3..2..0..3..3

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 13 2012