OFFSET
1,1
COMMENTS
Column 7 of A219852
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..20
EXAMPLE
Some solutions for n=3
..1..1..1..0..0..0..0....1..1..1..1..1..0..0....1..1..1..1..1..0..0
..1..1..1..0..0..0..0....1..1..1..1..0..0..0....1..1..1..1..1..0..1
..1..1..1..2..2..0..0....1..1..1..0..0..0..0....2..2..2..2..2..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 29 2012
STATUS
approved