OFFSET
1,1
COMMENTS
Column 5 of A240000
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..0..3..3..0..0....0..0..0..3..3....3..3..0..0..0....0..3..3..0..0
..0..2..2..3..3....3..3..0..0..2....0..2..1..3..0....0..2..2..3..3
..3..2..0..3..0....0..3..1..2..2....2..2..0..3..3....0..0..0..0..0
..3..2..1..1..3....3..2..0..0..0....2..0..1..1..2....0..0..2..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 30 2014
STATUS
approved