Number of paraphyletic coalescence sequences for 2n lineages, n each in 2 species.
A306350
Number of paraphyletic coalescence sequences for 2n lineages, n each in 2 species.
Terms
- a(0) =0a(1) =4a(2) =162a(3) =23328a(4) =9072000a(5) =7873200000
External references
- oeis: A306350