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A037140 Convolution of natural numbers n >= 1 with Fibonacci numbers F(k), for k >= 5. 3

%I #13 Sep 08 2022 08:44:52

%S 5,18,44,91,172,308,533,902,1504,2483,4072,6648,10821,17578,28516,

%T 46219,74868,121228,196245,317630,514040,831843,1346064,2178096,

%U 3524357,5702658,9227228,14930107,24157564,39087908,63245717,102333878,165579856,267914003

%N Convolution of natural numbers n >= 1 with Fibonacci numbers F(k), for k >= 5.

%H G. C. Greubel, <a href="/A037140/b037140.txt">Table of n, a(n) for n = 0..1000</a>

%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (3,-2,-1,1).

%F a(n) = Fibonacci(n+9) - (29+8*n).

%F G.f.: (5+3*x)/((1-x-x^2)*(1-x)^2).

%t Table[Fibonacci[n+9] -8*n-29, {n,0,40}] (* _G. C. Greubel_, Jul 05 2019 *)

%o (PARI) vector(40, n, n--; fibonacci(n+9) -8*n-29) \\ _G. C. Greubel_, Jul 05 2019

%o (Magma) [Fibonacci(n+9) -8*n-29: n in [0..40]]; // _G. C. Greubel_, Jul 05 2019

%o (Sage) [fibonacci(n+9) -8*n-29 for n in (0..40)] # _G. C. Greubel_, Jul 05 2019

%o (GAP) List([0..40], n-> Fibonacci(n+9) -8*n-29) # _G. C. Greubel_, Jul 05 2019

%Y Cf. A000045, A001924, A001891, A033937, A033960.

%K easy,nonn

%O 0,1

%A _Wolfdieter Lang_

%E Corrected by _Franklin T. Adams-Watters_, Oct 25 2006

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Last modified April 24 06:39 EDT 2024. Contains 371920 sequences. (Running on oeis4.)