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A110288 19*2^n. 3
19, 38, 76, 152, 304, 608, 1216, 2432, 4864, 9728, 19456, 38912, 77824, 155648, 311296, 622592, 1245184, 2490368, 4980736, 9961472, 19922944, 39845888, 79691776, 159383552, 318767104, 637534208, 1275068416, 2550136832, 5100273664, 10200547328, 20401094656 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

The first differences are the sequence itself. Doubling the terms gives the same sequence (beginning one step further).

19 times powers of 2. - Omar E. Pol, Dec 17 2008

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..235

Tanya Khovanova, Recursive Sequences

Index entries for linear recurrences with constant coefficients, signature (2).

FORMULA

G.f.: 19/(1-2x). - Philippe Deléham, Nov 23 2008

a(n) = A000079(n)*19. - Omar E. Pol, Dec 17 2008

MATHEMATICA

19*2^Range[0, 60] (* Vladimir Joseph Stephan Orlovsky, Jun 09 2011 *)

PROG

(MAGMA) [19*2^n: n in [0..40]]; // Vincenzo Librandi, Apr 28 2011

CROSSREFS

Cf. A007283, A020714, A005009, A005010, A005015, A005029.

Cf. A000079. - Omar E. Pol, Dec 17 2008

Sequence in context: A048844 A008601 A033900 * A050813 A041712 A041710

Adjacent sequences:  A110285 A110286 A110287 * A110289 A110290 A110291

KEYWORD

easy,nonn

AUTHOR

Alexandre Wajnberg, Sep 07 2005

EXTENSIONS

Edited by Omar E. Pol, Dec 16 2008

STATUS

approved

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Last modified April 23 13:38 EDT 2017. Contains 285322 sequences.