OFFSET
1,1
COMMENTS
Column 3 of A201216.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..51
EXAMPLE
Some solutions for n=5
..0..0..0....0..0..1....0..0..0....0..1..1....0..0..0....0..0..0....0..0..1
..0..0..0....0..2..2....1..2..2....0..3..2....0..2..3....0..0..1....1..1..3
..0..1..1....0..3..2....1..1..1....1..3..3....1..1..2....0..0..2....2..2..2
..0..2..3....2..3..3....1..3..3....2..3..3....1..1..3....1..2..2....2..3..3
..0..2..2....1..2..3....1..2..2....1..3..3....1..2..2....1..3..2....3..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 28 2011
STATUS
approved