OFFSET
1,1
COMMENTS
Column 5 of A240412
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..2..3..3..2..3....2..3..2..2..2....2..3..3..3..2....3..2..2..2..2
..2..3..2..0..1....2..3..0..0..0....2..3..2..2..2....3..2..0..0..0
..2..0..3..0..0....2..1..2..0..0....3..0..0..0..0....1..0..0..0..0
..2..0..0..1..2....1..3..2..1..2....2..0..3..0..3....1..3..1..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 04 2014
STATUS
approved