This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A152013 #3 Mar 30 2012 17:27:01
%S A152013 19,27,31,37,41,44,46,49,50,53,55,57,58,59,61,64,67,68,69,70,71,73,77,
%T A152013 78,79,80,81,84,85,86,87,88,89,90,91,92,95,96,97,99,100,101,102,103,
%U A152013 104,107,109,110,113,114,115,116,117,118,120,126,127,128,129,130,133,134
%N A152013 Indices of Fibonacci numbers having at least two distinct primitive prime factors.
%C A152013 It is known that Fibonacci number A000045(n) has a primitive prime factor for all n, except n=0, 1, 2, 6 and 12. This sequence lists such indices n that A000045(n) has at least two primitive prime factors. Its sister sequence A152012 provides indices of Fibonacci numbers with exactly one primitive prime factor. The current sequence A152013 and its sister sequence A152012 along with the finite set {0,1,2,6,12} form a partition of the natural numbers.
%Y A152013 Cf. A000045, A001578, A152012.
%K A152013 nonn
%O A152013 1,1
%A A152013 _Max Alekseyev_, Nov 19 2008