a(n) = n^4*Fibonacci(n).

Terms

a(0) =0a(1) =1a(2) =16a(3) =162a(4) =768a(5) =3125a(6) =10368a(7) =31213a(8) =86016a(9) =223074a(10) =550000a(11) =1303049a(12) =2985984a(13) =6654713a(14) =14482832a(15) =30881250a(16) =64684032a(17) =133383037a(18) =271257984a(19) =544872101a(20) =1082400000a(21) =2128789026a(22) =4148908016a(23) =8019403537a(24) =15383789568a(25) =29306640625a(26) =55473687568a(27) =104384578338