Number of trees with n nodes and 11 leaves.

Terms

a(0) =1a(1) =5a(2) =30a(3) =151a(4) =698a(5) =2896a(6) =11053a(7) =38865a(8) =127339a(9) =390781a(10) =1131055a(11) =3102493a(12) =8105244a(13) =20247770a(14) =48548878a(15) =112089790a(16) =249930985a(17) =539592972a(18) =1130655414a(19) =2304230739a(20) =4575993619a(21) =8870692319a(22) =16812222795a(23) =31196614962a(24) =56750633235