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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A013721 16^(2n+1). 3
16, 4096, 1048576, 268435456, 68719476736, 17592186044416, 4503599627370496, 1152921504606846976, 295147905179352825856, 75557863725914323419136, 19342813113834066795298816, 4951760157141521099596496896 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..100

Tanya Khovanova, Recursive Sequences

FORMULA

a(n)=256*a(n-1), n>0 ; a(0)=16 . G.f.: 16/(1-256*x). a(n)=4*A013780(n). [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 27 2008]

PROG

(MAGMA) [16^(2*n+1): n in [0..15]]; // Vincenzo Librandi, Jun 04 2011

CROSSREFS

Sequence in context: A087519 A060616 A016936 * A053859 A053863 A053765

Adjacent sequences:  A013718 A013719 A013720 * A013722 A013723 A013724

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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

Content is available under The OEIS End-User License Agreement .

Last modified February 14 02:39 EST 2012. Contains 205567 sequences.