OFFSET
1,1
COMMENTS
Column 7 of A202033
EXAMPLE
Some solutions for n=2
.-1.-1.-1.-1..0..0..1...-1.-1.-1..0..1..1..1...-1..0..0..0..0..0..1
..0..1..1..1.-1..0..1....0..0..1.-1..0..0..0....0.-1..0..0..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 09 2011
STATUS
approved