OFFSET
1,1
COMMENTS
Column 1 of A204417
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 460*a(n-3) +1362*a(n-4) +2847*a(n-5) +2179*a(n-6) +26106*a(n-7) +51165*a(n-8) +60758*a(n-9) -30501*a(n-10) -91290*a(n-11) -24768*a(n-12) +6156*a(n-13) +36936*a(n-14)
EXAMPLE
Some solutions for n=3
..2..1..0....2..1..2....1..1..1....0..1..1....2..0..1....2..2..0....0..0..0
..2..1..2....1..0..2....2..1..1....0..0..1....2..0..2....1..2..0....2..0..0
..0..1..2....0..1..2....0..1..2....0..1..2....0..1..2....0..1..2....0..1..2
..0..2..0....0..0..2....2..1..2....1..0..1....1..0..2....1..2..0....0..0..2
..0..2..0....2..2..0....2..1..0....1..2..1....1..0..2....0..2..1....0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 15 2012
STATUS
approved