OFFSET

1,1

COMMENTS

Diagonal of A236884

EXAMPLE

Some solutions for n=3

..2..0..2..2....0..1..1..1....0..2..0..2....0..2..2..2....0..2..0..2

..2..2..2..0....2..0..1..1....2..2..2..2....2..2..2..2....2..2..2..2

..2..2..2..2....0..1..1..1....2..2..2..2....2..1..2..2....2..0..2..2

..2..1..2..2....1..1..0..1....2..1..2..1....2..2..2..0....2..2..2..1

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 01 2014

STATUS

approved