OFFSET
1,1
COMMENTS
Column 8 of A184457
EXAMPLE
Some solutions with a(1,1)=0 for 4X10
..0..0..2..0..0..2..0..0..2..2....0..0..2..2..0..2..1..0..2..1
..0..0..1..0..2..1..0..2..1..2....0..0..1..2..0..1..1..0..1..1
..0..2..1..0..0..1..0..0..1..2....0..1..2..2..1..2..1..1..2..1
..0..0..2..0..0..2..0..0..2..2....0..2..0..2..2..0..1..2..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 14 2011
STATUS
approved