

A329980


a(n) is the number of nonisomorphic generalized signotopes on n elements (cf. A328377) w.r.t. relabeling of the vertices.


1




OFFSET

3,2


REFERENCES

H. Bergold, S. Felsner, M. Scheucher, F. Schröder, and R. Steiner, Topological Drawings meet Classical Theorems from Convex Geometry, in preparation.


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CROSSREFS



KEYWORD

nonn,more,hard


AUTHOR



STATUS

approved



