OFFSET
1,1
COMMENTS
Column 1 of A205466.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 63*a(n-2) +50*a(n-3) +190*a(n-4) +42*a(n-5) +57*a(n-6) +122*a(n-7) +39*a(n-8) -12*a(n-9) for n > 10.
EXAMPLE
Some solutions for n=4
..3..1....2..0....2..0....1..0....1..2....1..1....1..3....1..3....3..1....2..2
..1..3....2..3....1..2....0..1....0..1....2..0....3..3....1..3....1..1....1..0
..2..2....3..0....1..1....0..0....0..0....2..1....2..0....3..1....3..2....0..0
..1..3....2..1....0..2....3..2....0..0....1..1....0..0....1..1....3..0....0..0
..1..2....2..3....1..1....1..1....3..0....3..2....2..1....0..2....1..1....1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 27 2012
STATUS
approved