OFFSET
1,1
COMMENTS
Diagonal of A241255
EXAMPLE
Some solutions for n=4
..3..3..2..2....2..2..3..3....2..2..3..3....2..2..3..3....3..3..2..2
..2..1..3..1....3..1..0..2....0..0..2..1....3..1..0..2....2..1..3..1
..2..2..2..2....3..2..1..2....0..3..2..3....3..2..1..2....2..2..0..2
..2..0..0..2....3..2..1..2....3..2..1..2....2..2..3..2....0..0..3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 18 2014
STATUS
approved