OFFSET
1,2
COMMENTS
Column 5 of A183935
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..169
EXAMPLE
Some solutions for n=4
.-2...-3...-2...-3...-4...-4...-1...-1...-1...-4...-2...-4...-3...-3...-2...-1
..0...-3...-2....1....0...-2...-1...-1....0....0...-2...-1...-1...-2...-2...-1
..1....3....1....1....1....3...-1....0....0....0....0....2....2....1....2....1
..1....3....3....1....3....3....3....2....1....4....4....3....2....4....2....1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 08 2011
STATUS
approved