OFFSET
1,2
COMMENTS
Row 4 of A221929
EXAMPLE
Some solutions for n=3
..1..1..2....1..0..1....0..2..1....1..0..2....0..1..1....1..1..2....0..0..2
..0..0..1....1..1..1....0..1..2....2..0..1....0..1..1....0..0..1....0..6..0
..0..3..2....0..1..1....1..1..1....0..1..0....0..2..1....1..1..4....1..1..0
..0..2..0....1..3..1....0..1..2....1..2..2....2..2..1....0..1..0....0..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 01 2013
STATUS
approved