Number of unlabeled rooted identity trees with n nodes where the branches of no branch of the root form a subset of the branches of the root.

A324839

Number of unlabeled rooted identity trees with n nodes where the branches of no branch of the root form a subset of the branches of the root.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =1a(4) =2a(5) =3a(6) =8a(7) =16a(8) =35a(9) =74a(10) =166a(11) =367a(12) =831a(13) =1878a(14) =4299a(15) =9857a(16) =22775a(17) =52777a(18) =122957a(19) =287337

External references