OFFSET
1,6
COMMENTS
Row 5 of A267197.
EXAMPLE
Some solutions for n=9
..0..1..1..2..2..3..3..4..4....0..1..1..1..2..2..3..4..4
..0..1..2..2..3..3..4..4..0....0..1..1..2..2..3..3..4..0
..0..1..2..2..3..3..4..0..0....0..1..1..2..3..3..4..4..0
..1..1..2..3..3..4..4..0..1....0..1..2..2..3..3..4..4..0
..1..2..2..3..4..4..0..0..1....0..1..2..2..3..3..4..4..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 11 2016
STATUS
approved