OFFSET
1,2
COMMENTS
Column 6 of A265005.
EXAMPLE
Some solutions for n=4
..0..0..0..1..1..2....0..0..0..1..2..2....0..0..0..1..1..1....0..0..0..1..1..2
..0..1..1..1..2..3....0..1..1..1..2..2....0..0..0..1..1..2....0..1..1..1..1..2
..0..1..2..2..3..3....0..1..1..2..3..3....1..2..2..2..3..3....0..2..2..3..3..3
..0..2..2..3..3..3....0..2..3..3..3..3....2..2..3..3..3..3....0..2..2..3..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 29 2015
STATUS
approved