OFFSET
1,2
COMMENTS
Column 7 of A188211
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..26
EXAMPLE
Some solutions for n=3
.-5...-4...-8...-1...-5...-8...-4...-7...-4...-8...-7...-5...-7...-3...-5...-3
..0...-3....2...-1...-3....1....0....0....2....0....3....1...-1...-1...-2....0
..5....7....6....2....8....7....4....7....2....8....4....4....8....4....7....3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 24 2011
STATUS
approved