A022377 Fibonacci sequence beginning 2, 30.

2, 30, 32, 62, 94, 156, 250, 406, 656, 1062, 1718, 2780, 4498, 7278, 11776, 19054, 30830, 49884, 80714, 130598, 211312, 341910, 553222, 895132, 1448354, 2343486, 3791840, 6135326, 9927166, 16062492

Offset

0,1

Links

Table of n, a(n) for n=0..29.

Tanya Khovanova, Recursive Sequences

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

Formula

G.f.: (2+28x)/(1-x-x^2). - Philippe Deléham, Nov 19 2008

Mathematica

a={}; b=2; c=30; AppendTo[a, b]; AppendTo[a, c]; Do[b=b+c; AppendTo[a, b]; c=b+c; AppendTo[a, c], {n, 4!}]; a (* Vladimir Joseph Stephan Orlovsky, Sep 18 2008 *)

Prog

(PARI) a(n)=([0, 1; 1, 1]^n*[2; 30])[1, 1] \\ Charles R Greathouse IV, Jun 01 2026

Crossrefs

Sequence in context: A071056 A075716 A073418 * A145290 A343930 A127026

Adjacent sequences: A022374 A022375 A022376 * A022378 A022379 A022380

Keyword

nonn,easy,changed

Author

N. J. A. Sloane

Status

approved