OFFSET
1,1
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..35
EXAMPLE
Some solutions for n=5
.-2...-2....1....0....1...-2...-2....0...-1....1....2...-1....0....2...-1...-2
.-1....0...-1....1....0...-2...-2....2...-2....0...-2....1...-2...-2...-1...-1
..2...-2...-1...-2....1...-2....1....0....1....1...-1...-1....0....0...-1....2
..1....0....0....1....2....2...-1....1....2...-1....0...-1...-1...-2....0...-1
..0...-2...-1....0....1...-1....1....0...-1...-2...-1....1...-2....2...-1....0
..1...-1...-1....1....0....0...-1....2....2...-1....2...-2....2....1....1....1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 16 2012
STATUS
approved