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

 

Logo

Invitation: celebrating 50 years of OEIS, 250000 sequences, and Sloane's 75th, there will be a conference at DIMACS, Rutgers, Oct 9-10 2014.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A021011 Pisot sequence P(6,11), a(0)=6, a(1)=11, a(n+1) is the nearest integer to a(n)^2/a(n-1). 0
6, 11, 20, 36, 65, 117, 211, 381, 688, 1242, 2242, 4047, 7305, 13186, 23802, 42965, 77556, 139996, 252706, 456158, 823408, 1486329, 2682964, 4843003, 8742077, 15780273, 28484880, 51417893, 92814143, 167538276, 302422379, 545900898 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..31.

FORMULA

G.f.: (3x^5+2x^4+x^3+4x^2-x+6)/(-x^6-x^3+x^2-2x+1) (conjectured). - Ralf Stephan, May 12 2004

CROSSREFS

Sequence in context: A160842 A007745 A188556 * A000382 A208670 A208726

Adjacent sequences:  A021008 A021009 A021010 * A021012 A021013 A021014

KEYWORD

nonn

AUTHOR

R. K. Guy

STATUS

approved

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

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

Last modified July 30 17:25 EDT 2014. Contains 245072 sequences.