OFFSET
1,1
COMMENTS
Row 4 of A219802
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..135
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....1..0..0....2..0..0....1..0..0....0..0..0....2..0..0
..0..0..0....0..0..0....1..0..0....2..0..0....1..0..0....0..0..0....2..0..0
..2..1..1....0..0..0....1..1..1....2..1..1....2..2..2....0..0..0....3..0..0
..2..2..3....0..0..0....2..2..2....2..1..1....2..2..3....3..0..0....3..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 28 2012
STATUS
approved