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A051840 Integer part of the Verhulst sequence x(n)=x(n-1)+3*(1-x(n-1))*x(n-1), x(0)=.1. 3
0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

a(n) = floor(A220811(n)/A220812(n)). - Reinhard Zumkeller, Dec 22 2012

REFERENCES

Peitgen, H.-O. and Richter, P. H., The Beauty of Fractals. Springer, 1986, p. 24.

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..1000

Eric Weisstein's World of Mathematics, Logistic Equation

Wikipedia, Logistic map

MATHEMATICA

NestList[ #*(4-3*#)&, 0.1, 103] // Floor (* Jean-Fran├žois Alcover, Jan 16 2013 *)

PROG

(Haskell)

a051840 n = a051840_list !! n

a051840_list = map floor vs where

   vs = iterate (\x -> x * (4 - 3 * x)) 0.1

-- Reinhard Zumkeller, Dec 22 2012

CROSSREFS

Sequence in context: A151763 A022925 A144607 * A174275 A144599 A144608

Adjacent sequences:  A051837 A051838 A051839 * A051841 A051842 A051843

KEYWORD

easy,nice,nonn

AUTHOR

Klaus Strassburger (strass(AT)ddfi.uni-duesseldorf.de), Dec 13 1999

EXTENSIONS

Data corrected for n > 37 by Reinhard Zumkeller, Dec 22 2012

STATUS

approved

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Last modified March 22 01:06 EDT 2019. Contains 321406 sequences. (Running on oeis4.)