Number of rooted trees with n nodes with every leaf at height 9.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =9a(6) =17a(7) =28a(8) =49a(9) =83a(10) =144a(11) =244a(12) =422a(13) =719a(14) =1234a(15) =2109a(16) =3615a(17) =6173a(18) =10565a(19) =18042a(20) =30839a(21) =52653a(22) =89927a(23) =153462a(24) =261931a(25) =446818a(26) =762190a(27) =1299678a(28) =2215990a(29) =3777230