OFFSET
1,1
COMMENTS
Column 6 of A219217
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..22
EXAMPLE
Some solutions for n=3
..0..0..0..1..2..2....0..0..0..0..1..1....1..1..1..0..0..0....1..1..1..1..1..1
..0..0..0..0..0..2....0..0..0..0..1..1....1..1..1..0..0..0....0..0..0..1..0..0
..1..0..0..0..0..2....0..0..1..1..1..1....2..2..2..0..0..0....0..0..0..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 14 2012
STATUS
approved