How to calculate rooted bifurcatingtree shapes

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Hi friends!

I’m studying about phylogenetic tree shapes. Most precisely about calculate all possible rooted bifurcatingtree shapes (not labeled). A book of Felsenstein named “Inferring Phylogenies” gives an algorithm to calculate that, but I don’t understand how to.

The book provides a calculation as follows:

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But my calculations does not match with following values table showed on the book.

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can anybody help me with a step by step example??

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3 posts were merged into an existing topic: How Many Unique Phylogenetic Topologies?

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