OFFSET
1,2
COMMENTS
Column 6 of A183935.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..71
EXAMPLE
Some solutions for n=4
.-4...-4...-2...-3...-5...-4...-4...-4...-4...-3...-2...-3...-3...-6...-2...-6
.-2...-1...-1...-3...-2...-2....0....0...-1...-2....0....0....1....0...-1....1
..1....0...-1....1....3....2....1....2....2...-1....1....1....1....3....1....2
..5....5....4....5....4....4....3....2....3....6....1....2....1....3....2....3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 08 2011
STATUS
approved