OFFSET
1,1
COMMENTS
Row 4 of A266681.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..16
EXAMPLE
Some solutions for n=4
..0..0..2..0....0..1..0..1....0..2..1..3....0..1..1..2....0..3..3..0
..3..2..3..1....3..3..1..0....1..3..2..3....0..3..0..3....2..2..3..3
..2..3..1..3....2..3..3..0....3..1..2..1....1..2..3..2....2..1..2..1
..1..1..2..0....2..1..2..2....0..2..0..0....2..1..0..3....0..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 02 2016
STATUS
approved