This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A022371 Fibonacci sequence beginning 2, 18. 2
 2, 18, 20, 38, 58, 96, 154, 250, 404, 654, 1058, 1712, 2770, 4482, 7252, 11734, 18986, 30720, 49706, 80426, 130132, 210558, 340690, 551248, 891938, 1443186, 2335124, 3778310, 6113434, 9891744, 16005178 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS G. C. Greubel, 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.: (2+16*x)/(1-x-x^2). - Philippe Deléham, Nov 19 2008 a(n) = 2*(Fibonacci(n+2) + 7*Fibonacci(n)). - G. C. Greubel, Aug 27 2017 a(n) = 2 * A022099(n). - Alois P. Heinz, Aug 27 2017 MATHEMATICA a={}; b=2; c=18; 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 *) Transpose[NestList[{Last[#], Total[#]}&, {2, 18}, 30]][[1]]  (* Harvey P. Dale, Apr 13 2011 *) PROG (PARI) for(n=0, 50, print1(2*(fibonacci(n+2) + 7*fibonacci(n)), ", ")) \\ G. C. Greubel, Aug 27 2017 CROSSREFS Cf. A022099. Sequence in context: A231502 A231864 A066242 * A299380 A266956 A092587 Adjacent sequences:  A022368 A022369 A022370 * A022372 A022373 A022374 KEYWORD nonn AUTHOR 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.

Last modified July 23 00:51 EDT 2018. Contains 312919 sequences. (Running on oeis4.)