OFFSET
0,2
LINKS
Paolo Xausa, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (15,-59,45).
FORMULA
G.f.: 1/(1-9*x)+1/(1-5*x)-1/(1-x).
E.g.f.: exp(9*x)+exp(5*x)-exp(x).
a(n) = 14*a(n-1)-45*a(n-2)-32 with a(0) = 1, a(1) = 13. - Vincenzo Librandi, Jul 21 2010
MATHEMATICA
Table[9^n + 5^n - 1, {n, 0, 25}] (* Paolo Xausa, Aug 03 2024 *)
PROG
(PARI) a(n)=9^n+5^n-1 \\ Charles R Greathouse IV, Jun 11 2015
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Mohammad K. Azarian, Jan 30 2009
STATUS
approved