Number of n-node rooted identity trees of height 8.

Terms

a(0) =1a(1) =7a(2) =27a(3) =82a(4) =221a(5) =553a(6) =1323a(7) =3078a(8) =7019a(9) =15765a(10) =34992a(11) =76922a(12) =167697a(13) =363020a(14) =780937a(15) =1670786a(16) =3557060a(17) =7539856a(18) =15918972a(19) =33490067a(20) =70226358a(21) =146822144a(22) =306121101a(23) =636648253a(24) =1320964417a(25) =2734901341a(26) =5650875038a(27) =11653922283a(28) =23991828701a(29) =49310264440