OFFSET
1,1
COMMENTS
Row 4 of A267562.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..31
EXAMPLE
Some solutions for n=4
..0..1..2..3....0..1..2..3....0..1..2..3....0..0..1..2....0..1..2..3
..1..2..3..0....1..1..2..3....1..2..3..0....3..0..1..2....0..1..2..3
..2..3..0..1....1..2..3..0....1..2..3..0....0..1..2..3....0..1..2..3
..3..0..1..2....2..3..0..0....1..2..3..0....1..2..3..3....0..1..2..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 17 2016
STATUS
approved