OFFSET
1,1
COMMENTS
Column 4 of A267974.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..42
EXAMPLE
Some solutions for n=2
..0..1..0..3....0..1..0..0....3..2..1..1....2..0..3..0....0..3..2..0
..3..1..3..0....0..3..1..2....2..3..2..2....0..3..2..1....1..2..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 23 2016
STATUS
approved