Number of rooted identity trees with n nodes and exactly 5 subtrees from the root.

A227809

Number of rooted identity trees with n nodes and exactly 5 subtrees from the root.

Terms

    a(0) =1a(1) =6a(2) =18a(3) =57a(4) =165a(5) =460a(6) =1242a(7) =3295a(8) =8589a(9) =22169a(10) =56675a(11) =143941a(12) =363527a(13) =914253a(14) =2291088a(15) =5725579a(16) =14275461a(17) =35526939a(18) =88279211a(19) =219088566a(20) =543169235a(21) =1345516437a(22) =3330785029a(23) =8240718421a(24) =20379364252a(25) =50380569630a(26) =124513186628a(27) =307663311638a(28) =760095010218

External references