Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A005009
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A005009 7*2^n. +0
11
7, 14, 28, 56, 112, 224, 448, 896, 1792, 3584, 7168, 14336, 28672, 57344, 114688, 229376, 458752, 917504, 1835008, 3670016, 7340032, 14680064, 29360128, 58720256, 117440512, 234881024, 469762048 (list; graph; listen)
OFFSET

0,1

COMMENT

An autocopy sequence: its first differences are the sequence itself. - Alexandre Wajnberg & Eric Angelini (alexandre.wajnberg(AT)ulb.ac.be), Sep 07 2005

LINKS

Tanya Khovanova, Recursive Sequences

FORMULA

G.f.: 7/(1-2*x).

a(n) = A118416(n+1,4) for n>3. - Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Apr 27 2006

CROSSREFS

Row sums of (6, 1)-Pascal triangle A093563, and of (1, 6)-Pascal triangle A096956, n>=1.

Sequence in context: A071711 A033895 A115876 this_sequence A135092 A058530 A134384

Adjacent sequences: A005006 A005007 A005008 this_sequence A005010 A005011 A005012

KEYWORD

nonn

AUTHOR

njas

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.


AT&T Labs Research