Number of trees with n nodes and 5 leaves.

Terms

a(0) =1a(1) =2a(2) =6a(3) =14a(4) =32a(5) =64a(6) =123a(7) =219a(8) =377a(9) =616a(10) =978a(11) =1496a(12) =2236a(13) =3251a(14) =4637a(15) =6475a(16) =8899a(17) =12025a(18) =16036a(19) =21091a(20) =27432a(21) =35271a(22) =44920a(23) =56656a(24) =70873a(25) =87924a(26) =108298a(27) =132438a(28) =160943a(29) =194358