OFFSET
1,1
COMMENTS
Even terms of column 4 of A199092
EXAMPLE
Some solutions for 4X4
..0..1..2..3....0..1..2..2....0..1..2..0....0..0..1..0....0..1..2..2
..0..1..2..3....0..1..0..0....0..1..2..0....2..3..1..0....0..1..0..0
..3..3..0..1....2..2..3..3....3..3..1..1....2..3..2..2....3..2..1..3
..2..2..0..1....3..3..1..1....2..2..3..3....1..1..3..3....3..2..1..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 02 2011
STATUS
approved