OFFSET
1,1
COMMENTS
Column 2 of A209218
EXAMPLE
Some solutions for n=5
..1..0....3..4....4..0....4..4....0..1....1..1....4..2....1..5....5..4....1..1
..1..0....4..2....1..2....3..4....2..1....1..1....0..2....1..3....2..2....0..2
..2..0....0..3....1..1....1..1....0..1....2..0....1..2....1..2....0..2....2..2
..0..1....3..2....2..2....4..3....2..0....0..2....1..2....3..0....4..2....0..0
..2..1....3..4....4..2....4..4....1..1....1..1....4..2....5..2....0..5....0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 06 2012
STATUS
approved