Number of n-node unlabeled rooted trees with thickening limbs and root outdegree (branching factor) 9.

A245149

Number of n-node unlabeled rooted trees with thickening limbs and root outdegree (branching factor) 9.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =1a(10) =1a(11) =1a(12) =1a(13) =1a(14) =1a(15) =1a(16) =1a(17) =1a(18) =3a(19) =3a(20) =5a(21) =5a(22) =7a(23) =7a(24) =9a(25) =9a(26) =11a(27) =15a(28) =18a(29) =23

External references