Number of distinct prime factors of n-th Fibonacci number.

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =2a(9) =2a(10) =2a(11) =1a(12) =2a(13) =1a(14) =2a(15) =3a(16) =3a(17) =1a(18) =3a(19) =2a(20) =4a(21) =3a(22) =2a(23) =1a(24) =4a(25) =2a(26) =2a(27) =4a(28) =4a(29) =1