OFFSET
1,1
COMMENTS
Column 3 of A206974.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..1..0..2....0..1..1....2..2..1....1..3..3....0..1..0....2..0..3....2..1..2
..3..2..1....3..3..0....0..0..3....1..1..3....3..2..2....0..2..0....3..0..1
..1..0..3....3..1..1....0..0..2....0..1..0....1..2..1....3..1..1....2..0..0
..3..0..1....3..2..1....2..2..0....0..1..0....1..0..2....2..0..2....1..3..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 14 2012
STATUS
approved