A137392 (10-n) * Fibonacci(n).

9, 8, 14, 18, 25, 32, 39, 42, 34, 0, -89, -288, -699, -1508, -3050, -5922, -11179, -20672, -37629, -67650, -120406, -212532, -372541, -649152, -1125375, -1942288, -3339106, -5720598, -9770351, -16640800, -28271649

Offset

1,1

Links

Table of n, a(n) for n=1..31.

Index entries for linear recurrences with constant coefficients, signature (2,1,-2,-1).

Formula

G.f.: x*(-11*x^2 - 10*x + 9) / (x^2+x-1)^2. - Colin Barker, Jan 01 2013

Mathematica

Table[(10-n)Fibonacci[n], {n, 40}] (* or *) LinearRecurrence[{2, 1, -2, -1}, {9, 8, 14, 18}, 40] (* Harvey P. Dale, Sep 05 2022 *)

Prog

(PARI) a(n)=(10-n)*fibonacci(n)

Crossrefs

Cf. A000045, A045925.

Sequence in context: A019327 A004450 A272962 * A307639 A231483 A309656

Adjacent sequences: A137389 A137390 A137391 * A137393 A137394 A137395

Keyword

sign,easy

Author

Roger L. Bagula and Gary W. Adamson, Apr 10 2008

Extensions

Edited by Ralf Stephan, Dec 24 2013

Status

approved