OFFSET
1,1
COMMENTS
Column 4 of A240406
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..2..1..1..2....2..1..2..1....2..1..1..2....2..1..1..2....2..1..2..1
..2..1..2..3....3..1..2..1....2..1..2..0....3..3..2..2....3..3..2..3
..2..0..0..2....3..2..1..2....2..0..0..2....3..2..3..2....2..2..2..2
..3..3..0..0....2..1..2..1....2..0..1..1....2..0..0..2....3..3..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 04 2014
STATUS
approved