Number of n-node unlabeled rooted trees with thickening limbs and root outdegree (branching factor) 6.

A245146

Number of n-node unlabeled rooted trees with thickening limbs and root outdegree (branching factor) 6.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =1a(7) =1a(8) =1a(9) =1a(10) =1a(11) =1a(12) =3a(13) =3a(14) =5a(15) =5a(16) =7a(17) =7a(18) =13a(19) =14a(20) =21a(21) =26a(22) =34a(23) =40a(24) =61a(25) =72a(26) =100a(27) =127a(28) =171a(29) =209

External references