OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (9,-8).
FORMULA
a(n) = 8*a(n-1)+7. a(n) = 9*a(n-1)-8*a(n-2), n>1.
G.f.: ( 10-3*x ) / ( (8*x-1)*(x-1) ). - R. J. Mathar, Oct 31 2011
MAPLE
MATHEMATICA
11*8^Range[0, 20]-1 (* or *) LinearRecurrence[{9, -8}, {10, 87}, 20] (* Harvey P. Dale, May 19 2021 *)
PROG
(Magma) [11*8^n-1: n in [0..30]]
(PARI) a(n)=11*8^n-1 \\ Charles R Greathouse IV, Jan 23 2017
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Oct 31 2011
STATUS
approved