1,11

Table of n, a(n) for n=1..103.

J. E. Cremona, Elliptic Curve Data

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.

Cf. A005788, A060564.

Sequence in context: A048962 A135028 A275689 * A270392 A060284 A036275

Adjacent sequences: A110617 A110618 A110619 * A110621 A110622 A110623

nonn

Steven Finch, Sep 14 2005

approved