OFFSET
1,2
COMMENTS
Diagonal of A188416
EXAMPLE
All solutions for 4X2
..1..1....1..1....1..0
..1..0....1..1....1..0
..0..1....0..0....0..1
..0..0....0..0....0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 30 2011
STATUS
approved