A206608 Fibonacci sequence beginning 13, 10.

13, 10, 23, 33, 56, 89, 145, 234, 379, 613, 992, 1605, 2597, 4202, 6799, 11001, 17800, 28801, 46601, 75402, 122003, 197405, 319408, 516813, 836221, 1353034, 2189255, 3542289, 5731544, 9273833, 15005377, 24279210, 39284587, 63563797, 102848384, 166412181

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

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

Formula

a(n) = Fibonacci(n+5) + Fibonacci(n-6). - Greg Dresden and Gavron Campbell, Mar 03 2022

Mathematica

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

Prog

(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

Crossrefs

Cf. A000032, A000045, A206607.

Sequence in context: A240812 A291425 A180864 * A094813 A364712 A152298

Adjacent sequences: A206605 A206606 A206607 * A206609 A206610 A206611

Keyword

nonn,easy

Author

Vladimir Joseph Stephan Orlovsky, Feb 10 2012

Status

approved