a(1) = a(2) = 1; for n > 2, a(n) is the product of prime factors of the n-th Fibonacci number.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =2a(6) =13a(7) =21a(8) =34a(9) =55a(10) =89a(11) =6a(12) =233a(13) =377a(14) =610a(15) =987a(16) =1597a(17) =646a(18) =4181a(19) =6765a(20) =10946a(21) =17711a(22) =28657a(23) =966a(24) =15005a(25) =121393a(26) =196418a(27) =317811a(28) =514229a(29) =208010