OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (11,-26,16).
FORMULA
G.f.: 1/(1-8*x)+1/(1-2*x)-1/(1-x). E.g.f.: e^(8*x)+e^(2*x)-e^x.
a(n)=10*a(n-1)-16*a(n-2)-7 with a(0)=1, a(1)=9 - Vincenzo Librandi, Jul 21 2010
a(n) = A074603(n)-1. - R. J. Mathar, Mar 10 2022
MATHEMATICA
Table[8^n+2^n-1^n, {n, 0, 30}] (* or *) LinearRecurrence[{11, -26, 16}, {1, 9, 67}, 30] (* Harvey P. Dale, Jul 09 2017 *)
PROG
(PARI) a(n)=8^n+2^n-1 \\ Charles R Greathouse IV, Jun 11 2015
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Mohammad K. Azarian, Jan 24 2009
STATUS
approved