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

A318862

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

Terms

    a(0) =0a(1) =1a(2) =1a(3) =3a(4) =8a(5) =22a(6) =61a(7) =168a(8) =465a(9) =1302a(10) =3659a(11) =10329a(12) =29247a(13) =83076a(14) =236567a(15) =675191a(16) =1930857a(17) =5531409a(18) =15870783a(19) =45600643a(20) =131187583a(21) =377844713a(22) =1089401822a(23) =3143970659a(24) =9081351051a(25) =26252708661a(26) =75949137535a(27) =219873546468a(28) =636947053248

External references