OFFSET
1,2
COMMENTS
Row 6 of A267392.
EXAMPLE
Some solutions for n=4
..0..0..0..1....0..0..1..1....0..0..0..0....0..0..0..1....0..0..1..2
..0..1..1..2....0..1..2..2....1..1..1..1....1..1..1..2....1..1..2..3
..1..2..2..3....1..2..3..3....2..2..2..2....2..2..2..3....1..2..3..4
..2..3..3..4....2..3..4..4....3..3..3..3....3..3..3..4....2..3..4..5
..3..4..4..5....3..4..5..5....4..4..4..4....4..4..4..5....3..4..5..5
..4..5..5..5....4..5..5..0....5..5..5..5....5..5..5..0....4..5..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 13 2016
STATUS
approved