OFFSET
1,2
COMMENTS
Column 6 of A240192
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..17
EXAMPLE
Some solutions for n=4
..2..0..0..0..0..0....2..0..0..0..0..0....2..0..0..0..0..0....2..0..0..0..0..0
..1..2..0..0..2..0....1..2..2..0..2..0....1..2..2..0..2..2....1..0..2..0..0..2
..1..2..0..2..2..0....1..2..2..2..0..2....2..1..2..3..2..0....2..3..2..2..2..0
..2..3..0..0..2..0....2..3..0..2..0..0....1..2..2..3..3..2....1..3..2..1..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 02 2014
STATUS
approved