%I #4 Mar 31 2012 12:37:14
%S 12747,162486009,964232197214,5637076828393230,33450230674269584063
%N Number of 7Xn 0..3 arrays avoiding the pattern z-1 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal
%C Row 7 of A206974
%e Some solutions for n=4
%e ..2..2..1..2....1..3..2..0....0..2..3..2....2..1..2..3....2..0..3..3
%e ..1..1..3..2....0..0..0..2....3..3..2..3....0..1..2..0....3..2..3..0
%e ..0..3..3..0....0..2..3..3....0..0..2..2....0..1..0..0....0..3..0..3
%e ..1..3..2..1....3..2..3..0....3..2..2..0....2..0..3..0....2..2..0..2
%e ..1..2..1..1....3..0..2..0....2..1..0..1....2..0..3..2....2..3..0..0
%e ..0..3..0..3....2..2..0..0....2..2..0..2....1..2..0..2....1..0..3..3
%e ..0..0..2..1....0..0..3..2....1..3..0..3....0..1..0..0....3..3..1..3
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 14 2012