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A309060
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Least k such that the rank of the elliptic curve y^2 = x^3 + k^2*x is n.
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2
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OFFSET
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0,2
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LINKS
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FORMULA
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EXAMPLE
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PROG
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(PARI) {a(n) = my(k=1); while(ellanalyticrank(ellinit([0, 0, 0, k^2, 0]))[1]<>n, k++); k}
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CROSSREFS
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KEYWORD
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nonn,more,hard
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AUTHOR
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STATUS
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approved
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