OFFSET
1,1
COMMENTS
Diagonal of A203787
EXAMPLE
Some solutions for n=4
..1..0..2..1..0....2..3..2..2..2....1..2..0..0..3....3..0..1..0..0
..0..3..1..2..3....3..2..3..3..3....2..1..3..3..2....0..3..2..3..3
..3..1..3..2..1....2..3..3..3..3....2..3..2..2..3....1..2..3..3..3
..3..2..1..2..3....3..3..2..3..3....3..2..3..3..2....3..3..3..0..2
..3..3..3..2..3....3..3..2..3..3....2..3..3..3..2....3..3..3..3..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 05 2012
STATUS
approved