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A042944 Curvatures in diagram constructed by inscribing 2 circles of curvature 2 inside circle of curvature -1, continuing indefinitely to inscribe circles wherever possible. 6
-1, 2, 3, 6, 11, 14, 15, 18, 23, 26, 27, 30, 35, 38, 39, 42, 47, 50, 51, 54, 59, 62, 63, 66, 71, 74, 75, 83, 86, 87, 90, 95, 98, 99, 102, 107, 110, 111, 114, 119, 122, 123, 126, 131, 134, 135, 138, 143, 146, 147, 150, 155, 158, 162, 167, 170, 171, 174, 179, 182, 183 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

The sequence seems to follow a pattern where differences between consecutive terms are 3,1,3,5,3,1,3,5,.... However, some curvatures (starting with 78) are in the parent sequence, but missing from the circle diagram.

REFERENCES

Clifford A. Pickover, The Mathematics of OZ, Mental Gymnastics From Beyond The Edge, Cambridge University Press, Chapter 104 'Circle Mathematics,' figure courtesy of Allan R. Wilks, Cambridge, UK, 2002, pages 219 - 220.

LINKS

I. Peterson, Circle Game, Science News, 4/21/01.

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

CROSSREFS

Cf. A042945, A042946, A045506.

Sequence in context: A057758 A057125 A018687 * A163781 A090304 A005211

Adjacent sequences:  A042941 A042942 A042943 * A042945 A042946 A042947

KEYWORD

sign,nice

AUTHOR

Brian L. Galebach (sequence(AT)ProbabilitySports.com), Allan Wilks (allan(AT)research.att.com)

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Last modified February 17 12:38 EST 2012. Contains 206021 sequences.