OFFSET
1,1
COMMENTS
Column 3 of A188249
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..124
EXAMPLE
Some solutions for n=4
.-3....3....1...-3....2...-2...-2...-2....1...-2...-2....1....2...-3....2...-2
..2...-3....1...-2...-1...-3...-2...-1...-2....1...-2...-2...-3...-2....3....1
..2...-2...-2....3....2....3....2...-2....2...-2....2...-1...-1...-1...-3....2
..3...-1...-3....1....3...-2...-1....3....1...-3...-2...-3...-2....3...-1....1
.-2....1....1....3...-1...-3....1....2....1....2...-1....3....1...-1....2....2
.-1....2...-2...-2...-1...-1....3...-2....3....2...-2....2....3....2....1...-2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 25 2011
STATUS
approved