Number of unordered rooted trees where each subtree from given node has the same number of nodes.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =6a(6) =11a(7) =12a(8) =20a(9) =25a(10) =42a(11) =43a(12) =81a(13) =82a(14) =150a(15) =192a(16) =287a(17) =288a(18) =563a(19) =564a(20) =982a(21) =1277a(22) =2182a(23) =2183a(24) =3658a(25) =3785a(26) =7108a(27) =8659a(28) =13101a(29) =13102