OFFSET
1,1
COMMENTS
Column 4 of A268169.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..46
EXAMPLE
Some solutions for n=2
..0..3..3..0....0..2..1..0....0..3..1..3....0..0..3..2....0..2..1..0
..3..0..1..3....2..2..1..0....3..2..3..1....1..1..2..3....2..0..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 27 2016
STATUS
approved