OFFSET
1,2
COMMENTS
Diagonal of A203346
EXAMPLE
Some solutions for n=5
..4..4..3..1..0....2..2..2..3..3....4..4..0..4..4....0..3..3..2..1
..4..4..3..4..4....2..4..4..3..3....4..4..2..4..4....4..4..3..2..2
..3..3..0..4..4....3..4..4..2..3....4..3..3..2..4....4..4..0..1..2
..1..1..4..4..0....3..4..2..4..4....4..3..3..4..4....3..4..3..4..4
..1..1..4..4..0....2..4..4..4..4....4..4..4..4..4....2..4..4..4..4
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 31 2011
STATUS
approved