Number of unlabeled rooted trees with 2n nodes and maximal outdegree (branching factor) n.

A244407

Number of unlabeled rooted trees with 2n nodes and maximal outdegree (branching factor) n.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =17a(4) =50a(5) =143a(6) =416a(7) =1199a(8) =3474a(9) =10049a(10) =29119a(11) =84377a(12) =244748a(13) =710199a(14) =2062274a(15) =5991418a(16) =17416401a(17) =50652248a(18) =147384676a(19) =429043390a(20) =1249508947a(21) =3640449679a(22) =10610613552a(23) =30937605076a(24) =90237313083a(25) =263288153074a(26) =768449666117

External references