OFFSET
1,1
COMMENTS
Row 5 of A219578.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..30
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....0..0..0....1..0..0....2..0..0....1..0..0....2..0..0
..0..0..0....3..0..0....2..0..0....1..0..0....0..0..0....1..1..0....1..1..0
..0..0..0....3..1..0....2..0..0....0..0..0....1..0..0....2..2..2....2..1..1
..2..1..1....3..1..1....2..0..0....0..0..0....3..1..0....2..0..2....2..1..1
..2..1..1....3..2..1....2..3..0....3..0..2....3..2..2....0..0..0....2..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 23 2012
STATUS
approved