OFFSET
1,2
COMMENTS
Column 2 of A199704
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
EXAMPLE
Some solutions for n=5
..0....1...-2....0....2...-1....2....2....1....2...-1....2....1....0....2....0
.-1....0....2....1...-2....1....1....0...-1...-2....1...-1....2...-1...-1...-1
..1...-1...-1...-2....1...-1...-1...-1....0....0....0....1...-2....1....1....2
.-1...-2....0....0...-1....1...-2....1...-2...-1...-1....0...-1....2...-2...-1
..1....2....1....1....0....0....0...-2....2....1....1...-2....0...-2....0....0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 09 2011
STATUS
approved