OFFSET
1,3
COMMENTS
Column 2 of A184720
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..190
EXAMPLE
All solutions for n=5
..0....0....0....2....1
..0....2....0....0....1
..0....2....1....0....0
..0....0....2....2....2
..2....0....1....0....1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 20 2011
STATUS
approved