OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (11,-10).
FORMULA
a(n) = 10*a(n-1)-3.
a(n) = 11*a(n-1)-10*a(n-2).
G.f.: (4-7*x)/((1-x)*(1-10*x)).
MATHEMATICA
(11*10^Range[0, 20]+1)/3 (* or *) LinearRecurrence[{11, -10}, {4, 37}, 20] (* Harvey P. Dale, Mar 10 2019 *)
PROG
(Magma) [(11*10^n+1)/3: n in [0..30]];
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Nov 09 2011
STATUS
approved