OFFSET
1,1
COMMENTS
Row 4 of A268423.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..41
EXAMPLE
Some solutions for n=2
..0..1....0..1....0..1....0..1....0..1....0..0....0..0....0..1....0..0....0..1
..2..3....0..2....2..0....2..2....0..2....1..0....1..0....2..3....1..2....2..1
..2..2....0..0....2..0....2..2....2..2....2..3....0..2....0..1....3..0....0..0
..2..3....2..1....0..3....3..0....0..3....2..1....2..3....0..3....1..1....3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 04 2016
STATUS
approved