A134503 a(n) = Fibonacci(7n + 5).

5, 144, 4181, 121393, 3524578, 102334155, 2971215073, 86267571272, 2504730781961, 72723460248141, 2111485077978050, 61305790721611591, 1779979416004714189, 51680708854858323072, 1500520536206896083277

Offset: 0

Author

Artur Jasinski, Oct 28 2007

Keywords

• nonn
• easy

Links

• Index entries for linear recurrences with constant coefficients, signature (29,1)

Crossrefs

Cf. A000045, A134498, A134499, A134500, A134501, A134502, A134504.

Programs

Magma

[Fibonacci(7*n+5): n in [0..100]]; // Vincenzo Librandi, Apr 17 2011

Mathematica

Table[Fibonacci[7n+5], {n, 0, 30}]
LinearRecurrence[{29,1},{5,144},20] (* Harvey P. Dale, Apr 24 2017 *)

PARI

a(n)=fibonacci(7*n+5) \\ Charles R Greathouse IV, Jun 11 2015

Formula

From R. J. Mathar, Apr 17 2011: (Start)

G.f.: (-5+x) / (-1 + 29*x + x^2).

a(n) = 5*A049667(n+1) - A049667(n). (End)

Extensions

Offset changed from 1 to 0 by Vincenzo Librandi, Apr 17 2011