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 A117551 #10 Apr 20 2018 17:57:25 %S A117551 180,210,276,280,288,312,320,340,342,416,464,476,486,516,558,564,651, %T A117551 665,676,708,730,735,752,776,783,837,848,856,890,992,999,1030,1034, %U A117551 1038,1065,1068,1071,1095,1125,1130,1192,1212 %N A117551 Indices of Fibonacci numbers with 15 distinct prime factors. %H A117551 Blair Kelly, <a href="http://mersennus.net/fibonacci/">Fibonacci and Lucas Factorizations</a>. %e A117551 F(180) = 2^4 * 3^3 * 5 * 11 * 17 * 19 * 31 * 41 * 61 * 107 * 181 * 541 * 2521 * 109441 * 10783342081 has 15 distinct prime factors, so 180 is in the sequence. %o A117551 (PARI) isok(n) = (omega(fibonacci(n)) == 15) \\ _Michel Marcus_, Jun 28 2013 %Y A117551 Cf. A114823-A114826, A114836-A114841. %Y A117551 Column k=15 of A303217. %K A117551 hard,more,nonn %O A117551 1,1 %A A117551 _Ryan Propper_, Apr 26 2006 %E A117551 a(32)-a(42) from _Max Alekseyev_, Aug 18 2013