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%I #36 Jun 02 2017 12:31:40
%S 27,27,72,216,459,936
%N Number of rational curves on S of degree d passing through d-1 general points, where S is a general cubic surface in projective 3-space.
%C Finding a recursive formula (à la Kontsevich for A013587?) remains open.
%C The famous 27 lines on a cubic surface is the case a(1) = 27. - _Michael Somos_, Feb 25 2014
%H Steven R. Finch, <a href="/A013587/a013587.pdf">Enumerative geometry</a>, February 24, 2014. [Cached copy, with permission of the author]
%H W. Traves, <a href="http://www.usna.edu/Users/math/traves/presentations/MAAC2004print.pdf">Conics on the cubic surface</a>, MAAC 2004, George Mason University.
%Y Cf. A013587, A027363.
%K nonn,more
%O 1,1
%A _Steven Finch_, Feb 25 2014
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