Figure 1.

Matching ${\varphi }_{\text{1}}^{(n\text{,Π})}$ [see Equation 2] for the different coalescent processes Π ∈ {A, B, D, E} with number of leaves n as shown. Expected values were computed exactly. The processes and their associated parameters are algebraic growth (A, γ), beta(2 − α, α)-coalescent (B, α), Dirac coalescent (D, ψ), and exponential growth (E, β). The values with label 5+ represent the collapsed tail ${\displaystyle {\sum }_{i>\text{5}}{\varphi }_i^{\left(n\text{,Π}\right)}}$.