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

A244710

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

Terms

    a(0) =1a(1) =1a(2) =3a(3) =6a(4) =15a(5) =31a(6) =74a(7) =159a(8) =365a(9) =805a(10) =1817a(11) =4035a(12) =9072a(13) =20221a(14) =45328a(15) =101263a(16) =226767a(17) =507067a(18) =1135206a(19) =2539827a(20) =5685851a(21) =12725874a(22) =28491634a(23) =63785789a(24) =142828392a(25) =319826118a(26) =716260116a(27) =1604170013a(28) =3593139239a(29) =8048694851

External references