OFFSET
1,2
COMMENTS
Column 5 of A188181
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..28
EXAMPLE
Some solutions for n=6
.-8...-8...-9...-8...-9...-8...-9...-6...-9...-8...-4...-9...-4...-9...-8...-8
.-4...-7...-1...-3...-2...-7...-3...-2...-3...-7...-3...-8...-3...-6...-5...-3
.-3...-1....0...-2....0...-4...-2...-1...-1...-3...-2....0...-2....1...-3...-1
.-1....4....1....0....1....2....2....0....3....2....2....3...-1....3....0....0
..7....5....3....5....2....8....5....1....4....7....3....6....3....5....7....5
..9....7....6....8....8....9....7....8....6....9....4....8....7....6....9....7
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 23 2011
STATUS
approved