OFFSET
1,1
COMMENTS
Column 4 of A266025.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..1..0..0..1....0..0..1..1....0..1..1..0....0..0..1..1....0..2..1..0
..1..2..1..1....0..2..2..0....2..3..2..0....0..2..2..0....0..1..1..1
..2..2..2..0....1..2..0..0....1..2..1..2....1..3..2..1....2..1..1..1
..1..0..0..0....1..0..0..0....0..2..1..0....1..0..1..2....0..2..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 20 2015
STATUS
approved