OFFSET
1,1
COMMENTS
Column 4 of A239819
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3
..3..0..2..2....3..2..3..2....3..2..3..2....3..2..2..0....3..2..3..2
..3..0..2..0....2..1..1..2....3..1..2..1....2..1..0..0....1..0..2..1
..1..0..0..2....1..3..3..2....2..1..1..1....3..2..0..2....3..0..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 27 2014
STATUS
approved