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Date: 5-11-2021
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The Gosper island (Mandelbrot 1977), also known as a flowsnake (Gardner 1989, p. 41), is a fractal that is a modification of the Koch snowflake. The term "Gosper island" was used by Mandelbrot (1977) because this curve bounds the space filled by the Peano-Gosper curve.
It has fractal dimension
(OEIS A113211).
Gosper islands can tile the plane (Gardner 1989, p. 41).
REFERENCES:
Gardner, M. Penrose Tiles and Trapdoor Ciphers... and the Return of Dr. Matrix, reissue ed. New York: W. H. Freeman, 1989.
Mandelbrot, B. B. Fractals: Form, Chance, & Dimension. San Francisco, CA: W. H. Freeman, Plate 46, 1977.
Mandelbrot, B. B. The Fractal Geometry of Nature. New York: W. H. Freeman, pp. 70-71, 1983.
Sloane, N. J. A. Sequence A113211 in "The On-Line Encyclopedia of Integer Sequences."
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