OFFSET
1,2
COMMENTS
Diagonal of A230910
EXAMPLE
Some solutions for n=4
..0..2..0..3....0..3..1..3....0..2..1..3....0..1..2..1....0..1..0..1
..1..3..1..0....1..2..0..1....1..3..0..1....3..0..3..0....2..3..2..0
..0..2..3..2....3..1..3..2....2..1..2..0....1..2..1..2....0..1..3..2
..1..0..1..0....0..2..1..0....0..3..1..3....3..0..3..1....3..2..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 01 2013
STATUS
approved