OFFSET
1,1
COMMENTS
Row 4 of A234393
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..70
EXAMPLE
Some solutions for n=1
..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..0..0....0..0..0....0..0..0
..1..0..1....3..0..3....0..0..0....2..1..0....3..2..1....3..3..3....2..3..0
..1..3..0....0..0..1....0..2..2....0..0..1....0..2..0....0..0..0....0..3..2
..2..3..0....0..2..2....2..0..0....2..3..1....1..0..3....1..3..2....3..3..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 25 2013
STATUS
approved