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 A110620 Number of elliptic curves (up to isomorphism) of conductor n. 0
 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 6, 8, 0, 4, 0, 3, 4, 6, 0, 0, 6, 0, 5, 4, 0, 0, 8, 0, 4, 4, 4, 3, 4, 4, 5, 4, 4, 0, 6, 1, 2, 8, 2, 0, 6, 4, 8, 2, 2, 1, 6, 4, 6, 7, 3, 0, 0, 1, 4, 6, 4, 2, 12, 1, 0, 2, 4, 0, 6, 2, 0, 12, 1, 6, 4, 1, 8, 0, 2, 1, 6, 2, 0, 0, 1, 3, 16, 4, 3, 0, 2, 0, 8, 0, 6, 11, 4, 1, 12, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,11 LINKS J. E. Cremona, Elliptic Curve Data EXAMPLE a(11)=3 since there are three non-isomorphic elliptic curves of conductor eleven, represented by the minimal models y^2+y=x^3-x^2-10*x-20, y^2+y=x^3-x^2-7820*x-263580 and y^2+y=x^3-x^2. CROSSREFS Cf. A005788, A060564. Sequence in context: A322015 A285311 A285131 * A270392 A060284 A036275 Adjacent sequences:  A110617 A110618 A110619 * A110621 A110622 A110623 KEYWORD nonn AUTHOR Steven Finch, Sep 14 2005 STATUS approved

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Last modified May 23 11:27 EDT 2022. Contains 353975 sequences. (Running on oeis4.)