OFFSET
1,1
COMMENTS
Column 4 of A219217
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..69
EXAMPLE
Some solutions for n=3
..0..0..0..0....0..0..1..1....1..1..2..2....0..0..0..1....1..1..0..0
..0..0..0..0....0..0..0..1....1..1..2..2....0..0..0..1....1..1..0..0
..2..2..1..1....0..0..0..2....1..1..2..2....0..0..2..2....1..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 14 2012
STATUS
approved