Computing the number of rooted level-1 networks with n leaves, k cycles and m internal arcs in the cycles
n: k: m:
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This webpage computes the number of rooted level-1 networks with n leaves, k cycles and m internal arcs in the cycles,
using the formula in Proposition 7 of the article entitled "Counting Phylogenetic Networks of Level 1 and 2" by Mathilde Bouvel, Philippe Gambette and Marefatollah Mansouri: