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Search: id:A028934
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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
1
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| 0, 1, 5, -8, 435, 3612, 43355, 28076979, -331948240, 641260644409, 318128427505160, -66316334575107447, 588310630753491921045, 435912379274109872312968, 2181616293371330311419201915
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OFFSET
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0,3
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REFERENCES
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B. Mazur, Arithmetic on curves, Bull. Amer Math. Soc. 14 (1986), 207-259; see p 225.
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FORMULA
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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
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Sequence in context: A101016 A025518 A046490 this_sequence A019636 A102521 A096789
Adjacent sequences: A028931 A028932 A028933 this_sequence A028935 A028936 A028937
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KEYWORD
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sign
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AUTHOR
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njas
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