OFFSET
1,1
COMMENTS
Row 4 of A267163.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..18
EXAMPLE
Some solutions for n=4
..0..0..2..1....0..3..3..1....0..0..3..1....0..2..1..0....0..3..1..1
..2..0..3..2....1..0..2..2....2..0..2..1....3..2..1..0....0..3..1..1
..1..0..3..1....1..3..2..1....1..0..3..2....3..3..2..1....3..2..2..0
..2..1..3..3....0..3..2..0....2..1..3..3....1..3..2..0....3..2..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 11 2016
STATUS
approved