OFFSET
1,7
COMMENTS
Column 1 of A199041
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
All solutions for n=7
..0....0....0
..0....0....0
..1....1....0
..1....1....1
..2....1....1
..2....2....2
..2....2....2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 02 2011
STATUS
approved