OFFSET
1,3
COMMENTS
Column 4 of A184720
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..66
EXAMPLE
All solutions for n=5
..0....4....0....2....0....1
..4....0....0....2....0....4
..4....0....0....0....2....2
..0....4....0....4....4....2
..0....0....4....2....2....3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 20 2011
STATUS
approved