OFFSET
1,1
COMMENTS
Column 2 of A238775
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +16*a(n-2) +31*a(n-3) -8*a(n-4) -78*a(n-5) -45*a(n-6) +56*a(n-7) -32*a(n-8) +32*a(n-9) +16*a(n-10)
EXAMPLE
Some solutions for n=5
..1..2....2..1....1..2....2..3....3..2....1..3....1..3....2..3....3..1....3..1
..3..1....1..2....2..3....1..2....1..0....3..0....3..0....3..2....1..3....1..3
..2..0....2..0....2..0....1..3....2..0....3..1....2..1....3..0....1..3....3..1
..1..2....3..0....3..0....2..3....1..3....1..2....1..2....1..2....2..0....1..2
..1..2....3..0....1..2....1..0....2..3....3..0....1..0....3..0....1..0....3..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 05 2014
STATUS
approved