OFFSET
1,3
COMMENTS
Diagonal of A201195
EXAMPLE
Some solutions for n=5
..0..1..2..1..1....0..0..0..0..0....0..0..0..2..1....0..0..0..1..1
..0..1..2..1..2....0..0..2..1..1....0..0..1..2..1....0..1..1..1..1
..1..1..2..2..2....0..0..1..2..1....0..0..2..2..1....0..1..1..2..1
..1..1..2..2..2....1..1..1..1..1....0..0..2..2..2....2..2..2..2..2
..2..2..2..2..2....1..1..1..1..2....0..1..2..2..2....1..1..1..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 28 2011
STATUS
approved