OFFSET
1,1
COMMENTS
Column 4 of A221937.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..157
FORMULA
Empirical: a(n) = 45*a(n-1) +166*a(n-2) -812*a(n-3) -2452*a(n-4) +2243*a(n-5) +23138*a(n-6) +2192*a(n-7) +908*a(n-8) +6885*a(n-9) -5028*a(n-10) +3940*a(n-11) -628*a(n-12) +36*a(n-13).
EXAMPLE
Some solutions for n=3
..1..3..0..1....0..1..0..0....1..1..2..1....1..3..0..0....1..0..0..2
..0..2..1..0....3..1..2..2....0..0..2..2....0..0..3..2....2..2..1..0
..0..1..2..1....1..1..1..0....2..0..0..1....1..1..1..0....0..2..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 01 2013
STATUS
approved