Number of rooted trees with n nodes such that three equals the maximal number of subtrees of the same size extending from the same node.

A318818

Number of rooted trees with n nodes such that three equals the maximal number of subtrees of the same size extending from the same node.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =3a(4) =9a(5) =23a(6) =60a(7) =166a(8) =447a(9) =1219a(10) =3344a(11) =9214a(12) =25493a(13) =70853a(14) =197150a(15) =550259a(16) =1539767a(17) =4314746a(18) =12112304a(19) =34063256a(20) =95904943a(21) =270375031a(22) =763193304a(23) =2156328194a(24) =6098563949a(25) =17264760959a(26) =48912296290a(27) =138683094562a(28) =393514686620

External references