OFFSET
1,1
COMMENTS
Column 5 of A198253
EXAMPLE
Some solutions for n=3
..0..0..0..0..0..0..0..0..1..1....0..0..0..0..0..0..1..1..2..2
..0..2..2..3..3..4..4..0..1..1....0..1..1..3..3..0..1..1..2..2
..0..2..2..3..3..4..4..0..3..3....0..1..1..3..3..0..3..3..0..0
..0..0..0..0..0..0..0..0..3..3....0..0..0..0..0..0..3..3..0..0
..1..1..2..2..1..1..3..3..2..2....3..3..4..4..1..1..2..2..1..1
..1..1..2..2..1..1..3..3..2..2....3..3..4..4..1..1..2..2..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 22 2011
STATUS
approved