Number of 5-ary rooted trees with n nodes and height exactly 4.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =3a(6) =8a(7) =18a(8) =38a(9) =73a(10) =136a(11) =244a(12) =426a(13) =728a(14) =1221a(15) =2016a(16) =3284a(17) =5283a(18) =8403a(19) =13227a(20) =20616a(21) =31824a(22) =48685a(23) =73801a(24) =110920a(25) =165256a(26) =244168a(27) =357694a(28) =519757a(29) =748971