OFFSET
1,1
COMMENTS
Column 5 of A187964
EXAMPLE
Some solutions for 4X7 with a(1,1)=0
..0..0..1..1..1..1..1....0..0..0..1..0..0..0....0..0..1..0..1..1..0
..0..0..0..1..0..1..1....0..0..0..1..1..1..0....0..0..0..0..0..1..0
..0..0..0..1..0..1..0....0..0..0..1..0..1..1....0..0..0..1..1..1..0
..0..0..0..0..1..0..0....0..0..1..1..1..0..0....0..0..0..0..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 16 2011
STATUS
approved