OFFSET
1,1
COMMENTS
Row 7 of A224281
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..46
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..1....0..0..0
..0..2..0....2..2..2....3..0..0....0..0..0....0..0..0....3..2..2....3..2..0
..2..2..2....3..2..2....3..2..0....1..2..0....0..1..0....2..2..0....3..0..0
..2..2..2....3..2..2....3..2..2....2..1..0....1..0..0....2..3..2....3..1..0
..3..3..2....2..2..2....3..2..1....1..2..1....3..3..1....3..3..0....2..3..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 02 2013
STATUS
approved