Number of rooted gene trees with n leaves on the label set [4].
A220824
Number of rooted gene trees with n leaves on the label set [4].
Terms
- a(0) =4a(1) =10a(2) =60a(3) =430a(4) =3396a(5) =28818a(6) =256172a(7) =2357138a(8) =22253672a(9) =214370398a(10) =2098593628a(11) =20817790876a(12) =208801698676
External references
- oeis: A220824