OFFSET
1,1
COMMENTS
Row 2 of A214166.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 21*a(n-1) +49*a(n-2) -959*a(n-3) -1869*a(n-4) +7679*a(n-5) +15051*a(n-6) -6741*a(n-7) -13230*a(n-8).
EXAMPLE
Some solutions for n=4
..0..1..0..2..1....0..1..0..2..1....0..1..0..1..2....0..1..0..1..2
..1..2..1..0..2....2..3..1..4..5....1..0..1..0..3....2..3..1..0..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 05 2012
STATUS
approved