Number of unlabeled rooted trees with n nodes where the branches of no non-leaf branch of any terminal subtree form a submultiset of the branches of the same subtree.

A324844

Number of unlabeled rooted trees with n nodes where the branches of no non-leaf branch of any terminal subtree form a submultiset of the branches of the same subtree.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =7a(5) =13a(6) =32a(7) =71a(8) =170a(9) =406a(10) =1002a(11) =2469a(12) =6204a(13) =15644a(14) =39871a(15) =102116a(16) =263325a(17) =682079a(18) =1775600a(19) =4640220

External references