OFFSET
1,1
COMMENTS
Column 1 of A232886
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..30
EXAMPLE
Some solutions for n=5
..0..1....0..0....1..1....0..0....1..1....0..0....2..0....0..1....0..2....2..0
..0..2....2..1....3..0....1..1....1..3....3..0....1..1....0..2....1..1....2..1
..2..2....1..2....0..3....3..0....2..3....2..2....0..2....3..0....0..3....2..1
..1..3....2..3....3..1....0..3....3..2....1..3....1..1....1..2....0..3....0..3
..2..3....3..2....2..3....3..3....3..3....2..2....0..2....2..1....2..2....0..3
..3..3....3..3....2..3....3..3....3..3....2..3....3..2....1..3....2..3....1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 02 2013
STATUS
approved