OFFSET
1,2
COMMENTS
Column 1 of A209054
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
All solutions for n=4
..0....1....0....1....3....0....0....3....2....0....1....2
..0....1....1....1....0....0....1....1....2....2....1....0
..1....0....1....1....0....0....1....1....2....0....1....2
..1....0....1....0....3....0....0....3....2....2....1....0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 04 2012
STATUS
approved