OFFSET

1,1

COMMENTS

Column 4 of A220406

EXAMPLE

Some solutions for n=3

..1..1..0..0....0..1..0..0....0..1..1..0....0..0..1..1....1..0..1..0

..1..0..1..0....0..0..0..1....0..0..1..0....0..0..1..0....0..0..1..0

..0..1..1..0....1..0..0..0....1..1..0..0....1..0..0..0....0..0..0..0

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 13 2012

STATUS

approved