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A195102 Decimal expansion of the reduction parameter for the biquadratic solution of the Feigenbaum-Cvitanovic equation. 0
1, 6, 9, 0, 3, 0, 2, 9, 7, 1, 4, 0, 5, 2, 4, 4, 8, 5, 3, 3, 4, 3, 7, 8, 0, 1, 5, 0, 3, 2, 4, 1, 6, 1, 3, 4, 8, 2, 2, 8, 2, 7, 8, 0, 5, 9, 7, 0, 9 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The expansion which starts quadratically 1+O(z^2) near the origin is in A006891. The constant here refers to the solution which starts 1+O(z^4) near z=0.

LINKS

Table of n, a(n) for n=1..49.

K. M. Briggs, G. R. W. Quispel, C. J. Thompson, Feigenvalues for Mandelsets, J. Phys. A 24 (1991), 3363-3368.

R. J. Mathar, Chebyshev series representation of Feigenbaum's period-doubling function, arXiv:1008.4608 [math.DS], 2010, Section 3.3.

EXAMPLE

Equals 1.690302971405244853...

CROSSREFS

Cf. A006891.

Sequence in context: A196762 A078196 A198118 * A020792 A242760 A196607

Adjacent sequences:  A195099 A195100 A195101 * A195103 A195104 A195105

KEYWORD

nonn,more,cons

AUTHOR

R. J. Mathar, Sep 09 2011

STATUS

approved

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Last modified June 14 21:27 EDT 2021. Contains 345041 sequences. (Running on oeis4.)