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A028934
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Numerator of y coordinate of 2n*P where P is generator for rational points on curve y^2+y = x^3-x.
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0
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0, 1, 5, -8, 435, 3612, 43355, 28076979, -331948240, 641260644409, 318128427505160, -66316334575107447, 588310630753491921045, 435912379274109872312968, 2181616293371330311419201915
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OFFSET
| 0,3
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REFERENCES
| B. Mazur, Arithmetic on curves, Bull. Amer Math. Soc. 14 (1986), 207-259; see p 225.
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FORMULA
| P=(0, 0), 2P=(1, 0), if kP=(a, b) then (k+1)P=(a'=(b^2-a^3)/a^2, b'=1-b*a'/a).
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CROSSREFS
| Sequence in context: A162571 A046490 A155214 * A195144 A175997 A144408
Adjacent sequences: A028931 A028932 A028933 * A028935 A028936 A028937
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KEYWORD
| sign
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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