OFFSET
1,3
COMMENTS
Row 4 of A231037
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3
..0..1..0....0..2..0....0..2..0....0..2..0....0..1..0....0..1..0....0..2..0
..1..2..2....2..1..1....1..1..2....2..1..1....2..2..2....2..2..1....0..1..1
..0..0..0....0..0..1....0..0..0....0..0..2....1..0..0....0..0..1....0..0..2
..2..1..2....1..2..1....1..2..1....1..2..1....2..1..2....2..1..2....1..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 03 2013
STATUS
approved