OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..100
Index entries for linear recurrences with constant coefficients, signature (11,-10)
FORMULA
G.f.: 40*x*(1+8*x) / ( (10*x-1)*(x-1) ). - R. J. Mathar, Aug 24 2011
MATHEMATICA
CoefficientList[Series[40 (1 + 8 x)/((10 x - 1) (x - 1)), {x, 0, 30}], x] (* Vincenzo Librandi, Oct 05 2014 *)
LinearRecurrence[{11, -10}, {40, 760}, 20] (* Harvey P. Dale, May 12 2022 *)
PROG
(Magma) [8*(10^n-5): n in [1..30]]; // Vincenzo Librandi, Oct 05 2014
CROSSREFS
KEYWORD
nonn,easy,less
AUTHOR
Vincenzo Librandi Nov 15 2010
STATUS
approved