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