Number of n-node rooted identity trees of height 6.

Terms

a(0) =1a(1) =5a(2) =14a(3) =33a(4) =72a(5) =149a(6) =301a(7) =599a(8) =1170a(9) =2254a(10) =4288a(11) =8081a(12) =15087a(13) =27971a(14) =51500a(15) =94293a(16) =171724a(17) =311328a(18) =562023a(19) =1010819a(20) =1811676a(21) =3236959a(22) =5766793a(23) =10246734a(24) =18162241a(25) =32119542a(26) =56682671a(27) =99833464a(28) =175509158a(29) =308014335