Number of ordered unlabeled rooted trees with n nodes such that the minimal outdegree of inner nodes equals 7.

A244536

Number of ordered unlabeled rooted trees with n nodes such that the minimal outdegree of inner nodes equals 7.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =7a(8) =15a(9) =16a(10) =17a(11) =18a(12) =19a(13) =20a(14) =91a(15) =253a(16) =529a(17) =852a(18) =1225a(19) =1651a(20) =2133a(21) =3493a(22) =6931a(23) =14095a(24) =27156a(25) =47648a(26) =77297a(27) =118031a(28) =182462a(29) =300441

External references