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 A114840 #27 Apr 26 2025 20:10:41 %S A114840 30,36,42,44,45,50,57,63,66,68,69,75,76,98,111,118,124,134,141,153, %T A114840 169,172,183,185,201,202,203,213,218,229,247,253,267,302,303,329,335, %U A114840 347,363,371,373,377,381,382,386,395,398,413,415,439,443,461 %N A114840 Indices of Fibonacci numbers with 5 distinct prime factors. %H A114840 Amiram Eldar, <a href="/A114840/b114840.txt">Table of n, a(n) for n = 1..116</a> (terms 1..106 from Max Alekseyev) %H A114840 Blair Kelly, <a href="http://mersennus.net/fibonacci/">Fibonacci and Lucas Factorizations</a>. %F A114840 {n: A022307(n)=5}. - _R. J. Mathar_, Nov 29 2015 %e A114840 a(1)=30 because 30th Fibonacci number consists of 5 distinct prime factors (i.e., 832040 = 2^3 * 5 * 11 * 31 * 61). %o A114840 (PARI) n=1;while(n<305,if(omega(fibonacci(n))==5,print1(n,", "));n++) %Y A114840 Cf. A114823-A114826, A114836-A114841. %Y A114840 Column k=5 of A303217. %K A114840 nonn %O A114840 1,1 %A A114840 _Shyam Sunder Gupta_, Feb 19 2006 %E A114840 More terms from _Ryan Propper_, Apr 26 2006 %E A114840 a(56)-a(106) from _Max Alekseyev_, Aug 18 2013