OFFSET
1,1
COMMENTS
Diagonal of A183756.
EXAMPLE
Some solutions for 3 X 3:
..1..1..0....3..0..0....3..3..1....0..1..0....3..3..2....2..1..3....0..3..0
..3..3..0....2..2..0....1..0..3....2..3..0....1..2..0....1..3..1....3..1..1
..2..0..1....1..1..3....3..1..1....0..3..0....0..2..1....0..0..1....1..2..1
...
...P..M.......P..M.......P..P.......E..M.......P..P.......P..P.......P..M...
...P..M.......E..E.......M..M.......P..E.......M..M.......M..M.......P..M...
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 06 2011
STATUS
approved