OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
Tanya Khovanova, Recursive Sequences
Index entries for linear recurrences with constant coefficients, signature (22,1).
FORMULA
From Philippe Deléham, Nov 21 2008: (Start)
a(n) = 22*a(n-1) + a(n-2) for n > 1, a(0)=11, a(1)=243.
G.f.: (11+x) / (1-22*x-x^2). (End)
MATHEMATICA
Numerator/@Convergents[Sqrt[122], 20] (* Harvey P. Dale, Jun 04 2011 *)
CoefficientList[Series[(11 + x)/(1 - 22 x - x^2), {x, 0, 30}], x] (* Vincenzo Librandi, Oct 31 2013 *)
CROSSREFS
KEYWORD
nonn,cofr,frac,easy
AUTHOR
EXTENSIONS
More terms from Colin Barker, Nov 05 2013
STATUS
approved