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 A114820 #20 May 05 2024 19:19:57 %S A114820 138,140,160,190,208,222,230,250,261,285,310,318,345,351,387,388,399, %T A114820 402,426,469,470,483,485,488,498,507,508,518,531,534,549,568,596,598, %U A114820 632,656,671,678,686,688,703,715,786,788,806,808,844,872,873,874,902 %N A114820 Indices of Fibonacci numbers with 11 prime factors when counted with multiplicity. %H A114820 Amiram Eldar, <a href="/A114820/b114820.txt">Table of n, a(n) for n = 1..77</a> %H A114820 Blair Kelly, <a href="http://mersennus.net/fibonacci/">Fibonacci and Lucas Factorizations</a>. %e A114820 a(1)=138 because the 138th Fibonacci number (i.e., 30960598847965113057878492344) consists of 11 prime factors (i.e., 2*2*2*137*139*461*691*829*18077*28657*1485571). %t A114820 Select[Range[1000],PrimeOmega[Fibonacci[#]]==11&] (* _Harvey P. Dale_, Jan 09 2022 *) %o A114820 (PARI) n=1;while(n<320,if(bigomega(fibonacci(n))==11,print1(n,", "));n++) %Y A114820 Column k=11 of A303215. %K A114820 hard,nonn %O A114820 1,1 %A A114820 _Shyam Sunder Gupta_, Feb 19 2006 %E A114820 More terms from _Ryan Propper_, May 24 2006