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Search: id:A028943
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| A028943 |
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Denominator of y coordinate of n*P where P is generator for rational points on curve y^2+y = x^3-x. |
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1
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| 1, 1, 1, 1, 8, 1, 27, 125, 343, 64, 12167, 24389, 205379, 2146689, 30959144, 274625, 3574558889, 50202571769, 553185473329, 4302115807744, 578280195945297, 1469451780501769, 238670664494938073, 13528653463047586625
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OFFSET
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0,5
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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: A125166 A075155 A075151 this_sequence A050311 A050302 A050401
Adjacent sequences: A028940 A028941 A028942 this_sequence A028944 A028945 A028946
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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