OFFSET
1,1
COMMENTS
Column 6 of A240271
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..18
EXAMPLE
Some solutions for n=3
..2..3..2..2..0..0....3..0..2..0..0..0....2..3..0..3..3..0....2..3..2..2..0..3
..2..1..1..1..2..2....2..3..2..0..0..0....2..1..2..2..2..2....2..1..2..0..0..3
..2..0..3..3..1..2....3..2..0..2..2..0....3..0..2..3..1..0....3..0..2..0..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 03 2014
STATUS
approved