Improve kontsevich_graphs generator to yield KontsevichGraphs with 0 internal vertices, and to start construction in general from a single KontsevichGraph (with ground vertices already in place).
Improve kontsevich_graphs generator to yield KontsevichGraphs with 0 internal vertices, and to start construction in general from a single KontsevichGraph (with ground vertices already in place).

rburing/kontsevich_graph_series