OFFSET
1,1
COMMENTS
Diagonal of A210134
EXAMPLE
Some solutions for n=4
..0..0..0..0..0....0..0..0..0..0....0..0..0..0..1....0..1..0..0..1
..0..0..0..0..0....1..2..3..2..3....2..1..3..1..2....1..2..1..2..2
..0..0..0..0..0....0..2..1..0..1....1..3..2..2..0....3..0..3..3..0
..0..0..0..0..0....2..1..3..2..1....2..2..1..3..0....0..1..3..3..2
..1..2..1..3..2....3..0..3..1..0....1..3..2..2..1....1..2..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 17 2012
STATUS
approved