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A087089
Periods of logistic map intervals in order of size.
2
1, 2, 4, 8, 3, 6, 16, 6, 5, 12, 10, 12, 32, 12, 10, 4, 5, 7, 24, 24, 20, 20, 8, 8, 7, 24, 10, 14, 9, 64, 24, 10, 16, 14, 20, 8, 18, 14, 9, 48, 48, 14, 20, 40, 6, 48, 16, 9, 40, 40, 7, 18, 48, 16, 20, 16, 28, 18, 9, 28
OFFSET
1,2
COMMENTS
The region of stability for period 8 after the point where period 4 splits in two is from 3.5440903596 to 3.5644072661 or a width of .0203169065. The period 3 cycle starts at 3.8284271247 = 1+sqrt(8) and ends at 3.8414990075, a width of .0130718828. This is less than that of period 8 so it follows it in sequence. The logistic map is just the real part of the Mandelbrot set.
The equation f(x)=a*x(1-x), f2(x)=f(f(x)) has a period 3 oscillation whenever 3.82843<a<3.84150.
REFERENCES
For references see A087046.
CROSSREFS
Sequence in context: A101942 A344534 A050170 * A367750 A197382 A332521
KEYWORD
nonn
AUTHOR
Enrico T. Federighi (rico125162(AT)aol.com), Aug 11 2003
STATUS
approved