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%I #3 Oct 12 2012 14:39:32
%S 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,
%T 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,
%U 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
%N Number of elliptic curves (up to isomorphism) of conductor n.
%H J. E. Cremona, <a href="http://www.maths.nottingham.ac.uk/personal/jec/ftp/data/INDEX.html">Elliptic Curve Data</a>
%e 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.
%Y Cf. A005788, A060564.
%K nonn
%O 1,11
%A _Steven Finch_, Sep 14 2005
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