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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A059165 a(n) = (n+1)*2^(n+4). 2
0, 16, 64, 192, 512, 1280, 3072, 7168, 16384, 36864, 81920, 180224, 393216, 851968, 1835008, 3932160, 8388608, 17825792, 37748736, 79691776, 167772160, 352321536, 738197504, 1543503872, 3221225472, 6710886400, 13958643712 (list; graph; refs; listen; history; text; internal format)
OFFSET

-1,2

COMMENTS

A hierarchical sequence (S(W'3{2,2}*cc) - see A059126).

Generating floretion: AB + BA with A = .5'i + .5'ii' + .5'ij' + .5'ik' and B = - .5'j + .5'k - .5j' + .5k' - 'ii' - .5'ij' - .5'ik' - .5'ji' - .5'ki'. - Creighton Dement, Dec 19 2004

LINKS

Harry J. Smith, Table of n, a(n) for n = -1...200

J. Wallgren, Hierarchical sequences

FORMULA

G.f.: 16/(2*x-1)^2.

a(n) = 4*A058922(n+2) = 16*A001787(n+1). - Philippe Deléham, Apr 21 2009

MATHEMATICA

Table[2^(n+4)*(n+1), {n, -1, 100}] (* Vladimir Joseph Stephan Orlovsky, Jan 15 2011 *)

PROG

(PARI) for(n=1, 40, print1(shift(n, n+3), ", "))

(PARI) { for (n = -1, 200, write("b059165.txt", n, " ", (n + 1)*2^(n + 4)); ) } \\ Harry J. Smith, Jun 25 2009

CROSSREFS

Sequence in context: A266103 A100184 A190099 * A212506 A212512 A255661

Adjacent sequences:  A059162 A059163 A059164 * A059166 A059167 A059168

KEYWORD

easy,nonn

AUTHOR

Jonas Wallgren, Feb 02 2001

EXTENSIONS

More terms from Benoit Cloitre, Apr 07 2002

Edited by N. J. A. Sloane, Apr 16 2008 at the suggestion of Vim Wenders

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 March 23 04:20 EDT 2017. Contains 283902 sequences.