I’m already aware of what factorial are used for, but the other versions are less intuitive. I understand how they work on paper, but what problems are they used to solve?
Also how high do they go in practical terms? Are there quadruple, quintuple, etc, versions?
In: 0
The number of possible bifurcating trees with labeled tips is, I think, “(3n-1)!!”. Going from memory, so I probably got that formula slightly wrong. That’s how many possible evolutionary history topologies there are for n species under some mild assumptions.
Latest Answers