OFFSET
1,1
COMMENTS
Column 4 of A240153
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..3..2..3..3....3..2..3..2....3..3..2..3....2..2..3..2....2..2..3..2
..3..2..1..1....3..2..1..1....2..1..2..1....0..2..1..2....0..2..1..1
..2..2..3..2....2..2..0..2....0..0..3..3....2..2..0..3....0..2..2..3
..3..2..1..2....2..0..0..1....0..3..2..3....2..0..2..2....0..2..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 02 2014
STATUS
approved