OFFSET
1,2
COMMENTS
Column 6 of A201195
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..19
EXAMPLE
Some solutions for n=4
..0..0..0..0..0..0....0..0..0..1..1..1....0..0..1..2..1..1....0..0..0..1..1..1
..0..1..2..1..1..2....0..0..1..2..2..1....2..2..2..2..2..2....0..0..0..2..2..1
..0..1..1..2..1..2....0..0..1..2..2..1....1..1..2..2..2..2....0..0..1..2..2..1
..1..1..1..1..1..2....0..2..1..2..2..2....1..2..2..2..2..2....0..0..1..2..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 28 2011
STATUS
approved