OFFSET
1,1
COMMENTS
Column 2 of A237677
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3
..1..1..3....2..3..0....0..2..3....2..1..2....2..3..3....2..1..1....2..1..3
..2..2..1....1..3..1....1..2..0....1..1..0....1..2..1....0..2..2....3..3..0
..0..2..2....0..3..2....0..1..2....2..0..3....3..3..2....3..1..3....0..1..2
..1..1..0....2..1..1....3..1..2....2..0..0....2..0..0....0..1..1....2..3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 11 2014
STATUS
approved