login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A022387 Fibonacci sequence beginning 4, 30. 1
4, 30, 34, 64, 98, 162, 260, 422, 682, 1104, 1786, 2890, 4676, 7566, 12242, 19808, 32050, 51858, 83908, 135766, 219674, 355440, 575114, 930554, 1505668, 2436222, 3941890, 6378112, 10320002, 16698114 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Tanya Khovanova, Recursive Sequences

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

FORMULA

G.f.: (4+26*x)/(1-x-x^2). - Philippe Deléham, Nov 19 2008

MATHEMATICA

a={}; b=4; 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 *)

LinearRecurrence[{1, 1}, {4, 30}, 30] (* Harvey P. Dale, Oct 16 2012 *)

CoefficientList[Series[(4 + 26*x)/(1 - x - x^2), {x, 0, 30}], x] (* Vincenzo Librandi, Oct 17 2012 *)

PROG

(MAGMA) I:=[4, 30]; [n le 2 select I[n] else Self(n-1) + Self(n-2): n in [1..40]]; // Vincenzo Librandi, Oct 17 2012

CROSSREFS

Equals 2 * A022117.

Sequence in context: A213795 A159862 A164820 * A108559 A167395 A268037

Adjacent sequences:  A022384 A022385 A022386 * A022388 A022389 A022390

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified April 29 09:07 EDT 2017. Contains 285604 sequences.