OFFSET
1,1
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..16
EXAMPLE
Some solutions for 4X4
..3..2..3..3....3..3..2..3....4..3..3..3....1..2..2..2....3..1..1..1
..2..2..2..2....3..3..2..2....3..3..2..2....2..2..2..3....1..1..4..1
..3..2..2..3....2..2..3..2....3..2..2..3....2..2..3..3....1..4..1..1
..3..2..3..3....3..2..2..2....3..2..3..2....2..3..3..4....1..1..1..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Aug 05 2011
STATUS
approved