OFFSET
1,1
COMMENTS
Column 1 of A200553
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
EXAMPLE
Some solutions for n=3
..0....1...-1...-1...-1....0....1...-1....1....0....1....0...-1....1....0....1
.-1....1...-1....1....1...-1....1....1...-1....1....0...-1....0...-1....1...-1
.-1...-1....1...-1....0....1...-1....1....0...-1....1....1....0....1...-1...-1
..1....0....0....1....1....1...-1...-1...-1...-1...-1....0....1...-1....1....1
..1...-1....1....0...-1...-1....0....0....1....1...-1....0....0....0...-1....0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 19 2011
STATUS
approved