OFFSET
1,2
COMMENTS
Diagonal of A183729.
EXAMPLE
Some solutions with the first block increasing clockwise for 3 X 3:
..5..0..1....1..2..3....4..5..4....2..3..2....0..1..2....5..0..5....3..4..3
..4..3..2....0..5..4....3..0..3....1..4..1....5..4..3....4..1..4....2..5..2
..5..0..1....1..2..3....2..1..2....0..5..0....0..1..2....3..2..3....1..0..1
...
...R..R.......R..R.......R..L.......R..L.......R..R.......R..L.......R..L...
...L..L.......L..L.......R..L.......R..L.......L..L.......R..L.......R..L...
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 06 2011
STATUS
approved