OFFSET
1,1
COMMENTS
Column 3 of A199655
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
FORMULA
Empirical: a(n) = 21*a(n-1) +44*a(n-2) +8*a(n-3) -96*a(n-4) -364*a(n-5) -264*a(n-6) +256*a(n-7) +288*a(n-8) +64*a(n-9) for n>10
EXAMPLE
Some solutions for n=4
..0..0..1....0..0..1....0..1..1....0..1..0....0..0..1....0..0..1....0..1..2
..1..0..1....1..0..2....0..2..2....1..0..1....1..1..1....2..2..0....1..0..1
..0..2..2....1..2..0....1..0..0....0..0..2....1..0..2....2..1..0....1..1..0
..1..2..2....0..0..2....2..2..2....2..2..0....1..0..0....2..0..0....0..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 08 2011
STATUS
approved