Number of n-node ordered rooted trees of height equal to the number of internal (non-leaf) nodes.

A358588

Number of n-node ordered rooted trees of height equal to the number of internal (non-leaf) nodes.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =8a(6) =41a(7) =171a(8) =633a(9) =2171a(10) =7070a(11) =22195a(12) =67830a(13) =203130a(14) =598806a(15) =1743258a(16) =5023711a(17) =14356226a(18) =40737383a(19) =114904941a(20) =322432215a(21) =900707165a(22) =2506181060a(23) =6948996085a(24) =19207795836a(25) =52944197508a(26) =145567226556a(27) =399314965956

External references