OFFSET
1,1
COMMENTS
Column 7 of A222906
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..25
EXAMPLE
Some solutions for n=3
..0..1..1..0..0..0..0....0..0..0..0..0..0..0....0..0..0..0..0..0..0
..2..0..0..0..0..0..1....0..1..2..0..0..0..0....1..2..0..0..0..0..0
..0..0..0..0..0..0..3....0..1..1..0..0..0..0....3..1..2..0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 09 2013
STATUS
approved