TreeTools: nRootedShapes – R documentation

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nRootedShapes

Number of rooted / unrooted tree shapes

nRootedShapes and nUnrootedShapes give the number of (un)rooted binary trees on n unlabelled leaves.

nRootedShapes

nUnrootedShapes

An object of class integer64 of length 55.

An object of class integer64 of length 60.

nRootedShapes corresponds to the Wedderburn-Etherington numbers, OEIS A001190

nUnrootedShapes is OEIS A000672

Create, Modify and Analyse Phylogenetic Trees

v1.4.4

GPL (>= 3)

Authors

Martin R. Smith [aut, cre, cph] (<https://orcid.org/0000-0001-5660-1727>), Emmanuel Paradis [cph] (<https://orcid.org/0000-0003-3092-2199>)

Initial release