|
%I #4 Mar 31 2012 12:37:16
%S 1440,2073600,1037800112,532255213048,269004461507864,
%T 139281562211310598,72904426459924759331
%N Number of nX7 0..2 arrays avoiding the pattern z-1 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal
%C Column 7 of A207208
%e Some solutions for n=4
%e ..1..1..0..2..1..1..0....1..1..1..1..1..0..2....1..0..0..0..2..2..0
%e ..1..1..0..1..0..0..2....2..2..0..2..2..1..2....1..1..0..2..0..2..0
%e ..0..1..0..0..2..2..2....1..1..1..1..0..2..1....1..2..0..2..0..2..2
%e ..1..1..0..2..2..2..0....0..2..2..1..2..1..2....0..2..2..0..0..2..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 15 2012
| 