Greatest common divisor of a Fibonacci number and its index.
0, 1, 1, 1, 1, 5, 2, 1, 1, 1, 5, 1, 12, 1, 1, 5, 1, 1, 2, 1, 5, 1, 1, 1, 24, 25, 1, 1, 1, 1, 10, 1
1 seqfan posts
Thu Mar 26 15:36:25 CET 2009 [seqfan] Re: rational sequence $$ f_n= (\frac{n}{f_{n-1}}+1)(n+1) \; , f_0 = 1 $$