Number of unlabeled centered trees with n nodes that have exactly one diametral path (up to direction of traversal).

A356375

Number of unlabeled centered trees with n nodes that have exactly one diametral path (up to direction of traversal).

Terms

    a(0) =0a(1) =1a(2) =0a(3) =1a(4) =0a(5) =1a(6) =2a(7) =5a(8) =9a(9) =21a(10) =44a(11) =107a(12) =247a(13) =607a(14) =1465a(15) =3649a(16) =9087a(17) =23059a(18) =58831a(19) =151832a(20) =394074a(21) =1030492a(22) =2708343a(23) =7157735a(24) =19002282a(25) =50676945a(26) =135691504a(27) =364725995a(28) =983775878a(29) =2662271414

External references