Number of n-node rooted identity trees of height 7.

Terms

a(0) =1a(1) =6a(2) =20a(3) =54a(4) =132a(5) =303a(6) =672a(7) =1460a(8) =3120a(9) =6575a(10) =13707a(11) =28296a(12) =57938a(13) =117764a(14) =237878a(15) =477781a(16) =954910a(17) =1899930a(18) =3765054a(19) =7433724a(20) =14628436a(21) =28698388a(22) =56143591a(23) =109550807a(24) =213251179a(25) =414190801a(26) =802808056a(27) =1553046868a(28) =2998986556a(29) =5781366468