OFFSET
1,1
COMMENTS
Column 4 of A240381
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..3..1..1..3....1..3..3..1....3..1..1..3....3..1..1..3....1..3..3..1
..3..0..2..3....1..0..0..0....3..2..2..0....3..0..2..0....1..2..0..0
..1..0..2..1....1..3..3..1....2..0..3..2....2..0..0..0....3..0..0..0
..3..0..2..2....3..2..3..3....1..3..2..1....1..0..0..0....1..2..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 04 2014
STATUS
approved