OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..200
Index entries for linear recurrences with constant coefficients, signature (2030,-1).
FORMULA
a(n+2) = 2030*a(n+1)-a(n).
a(n) = A145721(n)*16129. - Colin Barker, Oct 20 2014
G.f.: -16129*x*(x-1) / (x^2-2030*x+1). - Colin Barker, Oct 20 2014
EXAMPLE
a(1)=16129 because the first relation is (762+127)^3-762^3=16129^2.
MATHEMATICA
CoefficientList[Series[16129 (1 - x)/(x^2 - 2030 x + 1), {x, 0, 20}], x] (* Vincenzo Librandi, Oct 20 2014 *)
PROG
(PARI) Vec(-16129*x*(x-1)/(x^2-2030*x+1) + O(x^20)) \\ Colin Barker, Oct 20 2014
(Magma) I:=[16129, 32725741]; [n le 2 select I[n] else 2030*Self(n-1)-Self(n-2): n in [1..20]]; // Vincenzo Librandi, Oct 20 2014
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Richard Choulet, Oct 16 2008
EXTENSIONS
Editing and more terms from Colin Barker, Oct 20 2014
STATUS
approved