OFFSET
1,1
COMMENTS
Column 4 of A267997.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..41
EXAMPLE
Some solutions for n=2
..2..3..1..0....1..1..3..3....0..0..0..1....0..1..3..1....1..2..3..3
..2..0..0..1....1..1..0..3....1..3..0..2....1..3..3..1....0..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 24 2016
STATUS
approved