OFFSET
1,1
COMMENTS
Column 2 of A205736.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +11*a(n-2) -9*a(n-3) +8*a(n-4) -26*a(n-5) -99*a(n-6) +51*a(n-7) +135*a(n-8) +25*a(n-9) -54*a(n-10) -42*a(n-11) for n>14.
EXAMPLE
Some solutions for n=4:
..1..0..0....2..1..0....2..1..0....0..0..2....0..0..0....1..2..2....2..0..1
..0..2..1....2..1..2....2..1..0....1..1..1....1..1..1....0..1..0....2..1..2
..0..2..0....0..1..2....0..1..2....1..1..1....1..1..1....0..1..2....1..0..2
..2..1..0....2..2..1....2..1..0....0..0..0....1..2..1....1..0..0....1..1..1
..1..1..2....0..1..1....0..1..2....0..0..0....0..1..0....1..1..2....2..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 30 2012
STATUS
approved