OFFSET
1,1
COMMENTS
Column 4 of A233967.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3
..1..0..3..0..1....0..1..3..1..3....0..3..1..3..0....0..1..2..3..2
..2..3..2..3..0....3..2..0..0..0....3..2..0..2..3....3..0..3..0..3
..1..0..1..0..1....0..1..3..1..3....0..3..3..1..0....3..2..1..2..3
..2..3..0..3..0....3..0..0..2..0....1..0..2..0..3....1..0..3..0..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 18 2013
STATUS
approved