

A220812


Denominators of the Verhulst sequence x(n+1)=4*x(n)3*x(n)^2, x(0)=1/10; see A220811 for numerators.


5




OFFSET

0,1


REFERENCES

Peitgen, H.O. and Richter, P. H., The Beauty of Fractals. Springer, 1986, p. 23f.


LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..9
Eric Weisstein's World of Mathematics,Logistic Equation
Wikipedia, Logistic map


FORMULA

a(n) = 10^(2^n)) = A011557(A000079(n)).  Reinhard Zumkeller, Dec 22 2012


PROG

(Haskell)
a220812 = a011557 . a000079  Reinhard Zumkeller, Dec 22 2012


CROSSREFS

Cf. A051840.
Sequence in context: A173482 A173481 A135651 * A139103 A067217 A266175
Adjacent sequences: A220809 A220810 A220811 * A220813 A220814 A220815


KEYWORD

nonn,frac


AUTHOR

Reinhard Zumkeller, Dec 22 2012


STATUS

approved



