%I
%S 1,2,4,5,11,13,14,17,22,23,25,26,29,31,34,38,41,43,46,47,53,59,61,62,
%T 67,71,73,74,82,83,86,89,94,101,103,106,107,109,113,118,121,122,125,
%U 127,131,134,137,142,146,149,151,155,158,163,166,167,173,175,179,181
%N F(n) and C(2n,n) are relatively prime, where F(n) is the nth Fibonacci number (A000045(n)).
%F It seems that a(n) is asymptotic to c*n*Log(Log(n)) with 2.1< c <2.3
%K nonn
%O 1,2
%A _Benoit Cloitre_, Sep 04 2002
