OFFSET
1,1
COMMENTS
Column 4 of A218181
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..156
EXAMPLE
Some solutions for n=3
..1..1..1..1....0..0..1..1....2..2..3..2....2..3..1..1....3..0..0..0
..1..3..1..1....0..0..1..3....0..3..0..2....1..1..2..1....2..2..0..3
..1..1..3..2....0..1..3..3....0..0..0..0....1..1..1..2....2..2..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 22 2012
STATUS
approved