OFFSET
1,1
COMMENTS
Column 6 of A240000
EXAMPLE
Some solutions for n=3
..0..3..3..0..0..0....0..0..0..0..0..3....0..0..0..0..3..3....0..0..0..0..0..3
..3..2..3..3..3..0....0..3..3..0..0..2....3..3..0..0..2..2....3..3..0..0..0..0
..2..1..2..0..0..3....0..0..2..1..3..2....3..3..1..3..2..2....0..3..1..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 30 2014
STATUS
approved