%I #13 Aug 30 2021 01:48:10
%S 2,40,4160,1089024
%N "Virtual" number of rational curves (or rather, stable maps) of degree n in P^3 which meet 2n+1 general lines and are Legendrian, i.e., are tangent to the standard contact distribution in P^3.
%H Amorim, É., and Vainsencher, I., <a href="https://arxiv.org/abs/1907.03973">Contact Curves In Projective Space</a>, arXiv:1907.03973 [math.AG], Jul 2019. See Section 3.1.
%H Giosuè Muratore and Csaba Schneider, <a href="https://arxiv.org/abs/2105.11183">Effective computations of the Atiyah-Bott formula</a>, arXiv:2105.11183 [math.AG], 2021.
%K nonn,more
%O 1,1
%A _N. J. A. Sloane_, Oct 29 2019, following a suggestion from Israel Vainsencher.