a(n) = Fibonacci(5n)/Fibonacci(n).

Terms

a(0) =5a(1) =55a(2) =305a(3) =2255a(4) =15005a(5) =104005a(6) =709805a(7) =4873055a(8) =33379505a(9) =228841255a(10) =1568358005a(11) =10750060805a(12) =73681030805a(13) =505019869255