OFFSET
1,2
COMMENTS
Diagonal of A183362
EXAMPLE
Some solutions for 5X5 with a(1,1)=1
..1..3..2..2..4....1..2..3..1..4....1..3..3..2..2....1..1..3..4..2
..2..4..1..3..4....1..4..3..2..4....1..2..4..4..3....3..2..2..4..1
..3..4..1..3..2....3..4..1..2..3....3..2..1..1..3....4..4..1..3..3
..1..2..2..4..1....2..2..1..4..3....4..4..3..2..4....2..3..1..2..2
..4..3..3..4..1....1..3..3..4..1....1..1..3..2..1....1..3..4..4..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2011
STATUS
approved