OFFSET
1,2
COMMENTS
Column 2 of A221341
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..68
FORMULA
Empirical: a(n) = 17*a(n-1) -96*a(n-2) +174*a(n-3) +255*a(n-4) -1452*a(n-5) +1878*a(n-6) +67*a(n-7) -2335*a(n-8) +1974*a(n-9) -508*a(n-10)
EXAMPLE
Some solutions for n=3
..0..1....0..1....0..0....0..1....2..1....0..0....1..0....1..1....0..1....0..2
..2..1....2..1....1..2....1..2....2..1....2..2....2..1....2..1....2..0....1..2
..2..0....1..1....1..2....2..0....0..0....2..0....1..1....0..1....1..2....0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 11 2013
STATUS
approved