Number of ordered unlabeled rooted trees with n nodes such that the minimal outdegree of inner nodes equals 6.

A244535

Number of ordered unlabeled rooted trees with n nodes such that the minimal outdegree of inner nodes equals 6.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =6a(7) =13a(8) =14a(9) =15a(10) =16a(11) =17a(12) =69a(13) =190a(14) =400a(15) =651a(16) =946a(17) =1288a(18) =2186a(19) =4425a(20) =9126a(21) =17811a(22) =31654a(23) =51997a(24) =85841a(25) =149916a(26) =276056a(27) =518089a(28) =960466a(29) =1718395

External references