OFFSET
1,1
COMMENTS
Column 4 of A206900
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..1..0..2..1....1..3..2..1....3..2..2..1....1..0..3..2....3..1..1..2
..0..1..0..2....1..1..0..3....1..2..2..0....1..1..0..0....0..1..0..0
..2..1..0..0....2..3..3..0....1..3..1..3....3..1..3..0....0..0..3..0
..1..0..1..0....0..2..1..3....1..0..3..3....1..0..1..3....1..1..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 13 2012
STATUS
approved