OFFSET
1,1
COMMENTS
Column 4 of A268423.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..43
EXAMPLE
Some solutions for n=2
..0..1..0..2....0..0..1..2....0..1..2..2....0..1..0..2....0..0..1..2
..3..3..1..0....0..2..2..1....1..3..3..1....3..0..0..1....3..0..0..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 04 2016
STATUS
approved