OFFSET
1,1
COMMENTS
Column 4 of A200668
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=6
..1....0....2....1....2....3....0....1....2....3....1....0....0....0....1....0
..4....1....3....3....3....4....0....2....3....4....4....4....0....1....2....1
..1....3....3....4....1....4....0....3....1....3....4....4....0....4....4....2
..3....4....4....3....2....2....0....2....2....3....4....4....3....2....2....3
..4....4....0....3....1....0....1....4....2....1....2....4....4....4....4....2
..4....1....2....2....4....4....2....4....0....2....2....3....3....4....3....2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 20 2011
STATUS
approved