OFFSET
1,1
COMMENTS
Column 3 of A189545
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
EXAMPLE
Some solutions for n=5
..1....3....3...-2...-1....2...-2....2....3...-2...-3...-3...-3....2....2....1
.-2....1....2...-2...-1....1....3....1....3...-2...-2....2....3....1...-1...-1
..2....2....3....2....1....3....3....2....3...-2....2....1....2...-3...-2....3
.-2...-2...-1....2...-3....2....3...-1...-3...-3...-3....3....1....2....3....3
.-1....1...-1...-3....2...-2....3....2....2....1...-2...-2...-2...-1....3....3
.-3....2...-1....3....2....1...-1...-3....3....1....2...-3....1...-1....2...-2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 23 2011
STATUS
approved