OFFSET
1,1
COMMENTS
Column 3 of A181253.
LINKS
R. H. Hardin, Table of n, a(n) for n=1..200
FORMULA
Empirical: a(n) = 6*a(n-1) + 10*a(n-2) - 5*a(n-3).
Empirical g.f.: x*(8 + 9*x - 5*x^2) / (1 - 6*x - 10*x^2 + 5*x^3). - Colin Barker, Mar 26 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 10 2010
STATUS
approved