OFFSET
1,1
COMMENTS
Column 1 of A223495
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..81
EXAMPLE
Some solutions for n=1
..1....2....2....3....2....2....3....3....0....2....2....3....1....3....0....1
..1....2....0....0....0....1....1....1....1....0....1....2....1....1....0....0
..2....3....2....1....1....3....1....0....3....3....1....2....3....3....1....3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 20 2013
STATUS
approved