OFFSET
1,2
COMMENTS
Column 2 of A263333.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..0..1..0..2....0..0..0..0....0..1..0..2....2..0..0..1....0..2..1..1
..0..2..1..1....2..1..1..0....2..2..1..2....0..2..1..1....2..1..1..0
..2..2..1..2....0..1..0..2....0..0..0..0....0..0..0..0....1..1..2..2
..1..0..2..0....0..0..0..0....0..0..0..0....1..0..2..0....1..0..2..0
..1..1..2..2....1..0..2..0....1..0..2..0....0..1..0..2....0..0..0..0
..0..0..0..0....0..2..1..1....0..2..1..1....0..0..0..0....0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 15 2015
STATUS
approved