Number of ordered 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) =12a(7) =13a(8) =24a(9) =33a(10) =60a(11) =61a(12) =142a(13) =143a(14) =289a(15) =447a(16) =699a(17) =700a(18) =1558a(19) =1559a(20) =3518a(21) =5375a(22) =8977a(23) =8978a(24) =17179a(25) =20305a(26) =40471a(27) =54808a(28) =98182a(29) =98183