OFFSET
1,1
COMMENTS
Row 2 of A189326
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
FORMULA
Empirical: a(n) = 2*a(n-2) -a(n-4)
EXAMPLE
All solutions for n=3
..0....3....1....1....1....2....1
..3....3....2....1....3....3....2
..3....3....3....2....3....3....2
..3....3....3....3....3....3....3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 20 2011
STATUS
approved