OFFSET
1,2
COMMENTS
Column 7 of A183917
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..71
EXAMPLE
Some solutions for n=4
.-6...-6...-4...-2...-3...-5...-7...-6...-3...-5...-5...-2...-3...-1...-7...-2
.-2...-1...-4...-2...-1...-3....0...-3...-1...-2...-1....0...-2...-1...-7...-2
..2....0....4....0....1....4....0....4....2....3....3....1....1....0....7....1
..6....7....4....4....3....4....7....5....2....4....3....1....4....2....7....3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 07 2011
STATUS
approved