OFFSET
1,1
COMMENTS
Column 4 of A231586.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3
..1..0..1..1....2..0..0..0....1..0..0..0....1..1..2..2....0..0..0..2
..0..0..0..3....0..2..0..0....0..0..0..2....1..1..1..1....3..0..0..0
..0..0..0..0....0..0..0..1....1..0..1..3....3..3..1..1....2..1..0..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 11 2013
STATUS
approved