OFFSET
1,1
COMMENTS
Column 2 of A209553
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 8*a(n-1) -14*a(n-2) -3*a(n-3) +20*a(n-4) -8*a(n-5) -2*a(n-6)
EXAMPLE
Some solutions for n=4
..1..0..1....2..3..2....0..2..0....1..2..3....0..1..2....1..0..1....2..3..0
..0..1..0....3..2..3....2..0..2....0..1..2....1..2..3....2..3..2....1..0..3
..1..2..3....2..1..0....0..2..0....3..2..3....0..3..2....3..2..3....0..1..2
..0..1..0....1..0..1....2..0..2....0..1..2....3..0..1....2..3..2....3..2..1
..1..0..1....2..3..2....0..2..0....1..2..1....0..3..2....1..0..1....2..3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 10 2012
STATUS
approved