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!)
A086106 Decimal expansion of positive root of x^4-x^3-1=0. 3
1, 3, 8, 0, 2, 7, 7, 5, 6, 9, 0, 9, 7, 6, 1, 4, 1, 1, 5, 6, 7, 3, 3, 0, 1, 6, 9, 1, 8, 2, 2, 7, 3, 1, 8, 7, 7, 8, 1, 6, 6, 2, 6, 7, 0, 1, 5, 5, 8, 7, 6, 3, 0, 2, 5, 4, 1, 1, 7, 7, 1, 3, 3, 1, 2, 1, 1, 2, 4, 9, 5, 7, 4, 1, 1, 8, 6, 4, 1, 5, 2, 6, 1, 8, 7, 8, 6, 4, 5, 6, 8, 2, 4, 9, 0, 3, 5, 5, 0, 9, 3, 7 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Also the growth constant of the Fibonacci 3-numbers A003269 [Stakhov et al] - R. J. Mathar, Nov 05 2008

LINKS

Table of n, a(n) for n=1..102.

Eric Weisstein's World of Mathematics, Pisot-Vijayaraghavan Constant

A. Stakhov, B. Rozin, Theory of Binet formulas for Fibonacci and Lucas p-numbers, Chaos, Solit. Fractals 27 (2006), 1162-1177.

EXAMPLE

1.380277569...

MATHEMATICA

RealDigits[Root[ -1 - #1^3 + #1^4 &, 2], 10, 110][[1]]

PROG

(PARI) polrootsreal( x^4-x^3-1)[2] \\ Charles R Greathouse IV, Apr 14 2014

CROSSREFS

Cf. A060006.

Sequence in context: A155979 A120669 A021267 * A199731 A010626 A198837

Adjacent sequences:  A086103 A086104 A086105 * A086107 A086108 A086109

KEYWORD

nonn,cons

AUTHOR

Eric W. Weisstein, Jul 09 2003

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 28 07:20 EDT 2014. Contains 244987 sequences.