OFFSET
1,1
COMMENTS
Row 4 of A240284
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..3..3..1..3....3..1..3..3....3..1..3..3....3..1..3..1....3..1..3..1
..2..2..0..3....2..0..2..0....3..2..3..0....2..0..0..0....3..1..2..0
..2..0..2..2....2..0..0..2....2..2..2..2....2..0..2..0....3..1..2..1
..2..1..3..0....2..1..1..0....3..1..0..0....3..1..0..0....2..2..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 03 2014
STATUS
approved