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A320605 Welschinger invariant for the number of real plane curves of degree d passing through 3*d-1 general points. 0

%I

%S 8,240,18264,2845440,792731520,359935488000,248962406889600

%N Welschinger invariant for the number of real plane curves of degree d passing through 3*d-1 general points.

%H Aubin Arroyo, Erwan Brugalle, Lucia Lopez de Medrano, <a href="https://arxiv.org/abs/0809.1541">Recursive formulas for Welschinger invariants of the projective plane</a>, arXiv:0809.1541 [math.AG], 2008-2010. See W2(k,0) numbers in 7.3 Some computations pp. 17-18.

%H Antoine Chambert-Loir, <a href="https://www.pourlascience.fr/sd/mathematiques/quand-la-geometrie-devient-tropicale-14757.php">Quand la géométrie devient tropicale</a>, Pour la Science, No 492, October 2018 (in French).

%H I. Itenberg, V. Kharlamov, E. Shustin, <a href="https://arxiv.org/abs/math/0303378">Welschinger invariant and enumeration of real plane rational curves</a>, arXiv:math/0303378 [math.AG], 2003.

%Y Cf. A013587.

%K nonn,more

%O 3,1

%A _Michel Marcus_, Oct 17 2018

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Last modified June 20 05:01 EDT 2019. Contains 324229 sequences. (Running on oeis4.)