OFFSET
1,2
COMMENTS
Column 6 of A221321
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=9
..0....0....2....2....0....1....1....0....1....1....1....3....0....1....0....2
..1....1....0....1....2....0....2....2....0....0....0....1....1....0....2....3
..0....0....4....2....1....1....0....1....1....2....3....0....0....1....0....0
..2....2....0....0....0....0....1....0....0....1....1....2....2....0....1....1
..3....0....1....2....1....2....2....1....1....0....0....1....1....4....0....0
..0....3....0....0....0....1....1....2....0....3....1....0....0....0....4....2
..1....0....1....1....2....0....0....1....1....0....2....1....4....1....0....0
..0....2....0....0....0....1....2....2....3....2....1....0....0....0....2....1
..2....1....1....1....3....3....0....0....2....0....0....1....1....2....0....0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 10 2013
STATUS
approved