Number of unlabeled rooted trees with 2n+1 nodes and maximal outdegree (branching factor) n.

A244410

Number of unlabeled rooted trees with 2n+1 nodes and maximal outdegree (branching factor) n.

Terms

    a(0) =1a(1) =1a(2) =5a(3) =16a(4) =49a(5) =142a(6) =415a(7) =1198a(8) =3473a(9) =10048a(10) =29118a(11) =84376a(12) =244747a(13) =710198a(14) =2062273a(15) =5991417a(16) =17416400a(17) =50652247a(18) =147384675a(19) =429043389a(20) =1249508946a(21) =3640449678a(22) =10610613551a(23) =30937605075a(24) =90237313082a(25) =263288153073a(26) =768449666116

External references