OFFSET
1,1
COMMENTS
Diagonal of A201142
EXAMPLE
Some solutions for n=4
..0..0..0..4....0..0..2..2....0..0..1..3....0..1..1..2....0..1..2..2
..1..1..3..4....0..1..2..3....0..1..2..3....0..2..3..3....0..2..3..4
..2..2..3..5....1..3..4..5....1..4..4..5....0..2..3..5....1..3..4..4
..2..4..5..5....3..4..4..5....2..4..5..5....4..4..5..5....3..5..5..5
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 27 2011
STATUS
approved