OFFSET
1,1
COMMENTS
Diagonal of A210300
EXAMPLE
Some solutions for n=4
..2..1..0..3..3....3..2..2..1..1....1..1..3..3..0....1..2..0..2..2
..3..3..3..2..1....3..2..0..1..0....3..1..1..3..2....1..0..3..2..3
..3..1..3..0..0....3..3..1..3..2....1..1..2..0..3....0..2..3..3..0
..1..0..2..0..1....2..1..1..2..2....2..3..3..0..0....1..2..3..2..3
..0..2..1..1..1....0..1..3..1..3....2..1..3..2..0....1..1..1..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 19 2012
STATUS
approved