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Fibonacci sequence beginning 13, 10.
3

%I #29 Jun 05 2024 12:10:34

%S 13,10,23,33,56,89,145,234,379,613,992,1605,2597,4202,6799,11001,

%T 17800,28801,46601,75402,122003,197405,319408,516813,836221,1353034,

%U 2189255,3542289,5731544,9273833,15005377,24279210,39284587,63563797,102848384,166412181

%N Fibonacci sequence beginning 13, 10.

%H Vincenzo Librandi, <a href="/A206608/b206608.txt">Table of n, a(n) for n = 1..1000</a>

%H <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (1,1).

%F a(n) = Fibonacci(n+5) + Fibonacci(n-6). - _Greg Dresden_ and Gavron Campbell, Mar 03 2022

%t LinearRecurrence[{1, 1}, {13, 10}, 80]

%o (Magma) I:=[13, 10]; [n le 2 select I[n] else Self(n-1)+ Self(n-2): n in [1..40]]; // _Vincenzo Librandi_, Feb 16 2012

%Y Cf. A000032, A000045, A206607.

%K nonn,easy

%O 1,1

%A _Vladimir Joseph Stephan Orlovsky_, Feb 10 2012