OFFSET
1,5
COMMENTS
Column 1 of A199356
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..117
EXAMPLE
Some solutions for n=7
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
..1....1....0....1....1....0....1....1....1....1....1....1....1....0....1....1
..2....0....1....2....2....1....2....0....2....1....2....1....0....1....2....2
..0....2....1....3....2....2....0....2....1....2....1....0....1....1....1....3
..3....2....2....3....0....2....3....3....0....3....3....2....2....2....2....2
..1....1....2....0....1....1....2....1....3....2....2....2....2....3....0....1
..2....3....3....2....3....3....1....2....2....0....0....3....3....3....3....3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 05 2011
STATUS
approved