%I

%S 1,1,1,3,1,3,3,4,3,1,5,4,3,6,5,1,3,7,6,3,4,8,7,3,1,5,9,8,4,3,6,10,9,5,

%T 1,3,7,11,10,6,3,4,8,12,11,7,3,1,5,9

%N a(n)=index k such that F(k)=d(n), where d=A049874 (difference sequence of ordered products of Fibonacci numbers).

%K nonn,more

%O 1,4

%A _Clark Kimberling_