OFFSET
1,2
COMMENTS
Diagonal of A202549
EXAMPLE
Some solutions for n=5
..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0
..0..0..0..0..0....0..0..0..0..1....0..0..0..0..1....0..0..0..1..1
..0..0..1..1..1....0..1..0..1..2....0..1..0..1..0....0..0..1..1..0
..0..0..1..2..1....0..0..1..2..3....0..1..1..0..1....0..0..1..1..1
..0..1..1..1..2....0..1..2..2..2....0..0..0..1..2....0..0..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 20 2011
STATUS
approved