Number of strict trees of weight n with distinct leaves.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =3a(5) =6a(6) =8a(7) =11a(8) =17a(9) =40a(10) =48a(11) =76a(12) =109a(13) =159a(14) =400a(15) =470a(16) =745a(17) =1057a(18) =1576a(19) =2103a(20) =5267a(21) =6022a(22) =9746a(23) =13390a(24) =20099a(25) =26542a(26) =39396a(27) =82074a(28) =101387a(29) =152291