OFFSET
0,1
LINKS
FORMULA
From Mohammad K. Azarian, Jan 11 2009: (Start)
G.f.: 1/(1-5*x) + 1/(1-9*x).
E.g.f.: e^(5*x) + e^(9*x). (End)
a(n) = 14*a(n-1) - 45*a(n-2) with a(0)=2, a(1)=14. - Vincenzo Librandi, Jul 21 2010
MATHEMATICA
Table[5^n + 9^n, {n, 0, 20}]
LinearRecurrence[{14, -45}, {2, 14}, 20] (* Harvey P. Dale, Aug 02 2024 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Robert G. Wilson v, Aug 26 2002
STATUS
approved