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A114305 Numbers k such that Fibonacci(k) has more distinct prime factors than k does. 1

%I #10 Aug 25 2020 04:08:59

%S 8,9,15,16,18,19,20,21,24,25,27,28,30,31,32,33,35,36,37,38,39,40,41,

%T 42,44,45,46,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,

%U 67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,84,85,86,87,88,89,90,91

%N Numbers k such that Fibonacci(k) has more distinct prime factors than k does.

%H Amiram Eldar, <a href="/A114305/b114305.txt">Table of n, a(n) for n = 1..1377</a>

%t Select[Range[100],PrimeNu[Fibonacci[#]]>PrimeNu[#]&] (* _Harvey P. Dale_, Oct 25 2011 *)

%Y Cf. A000045, A001221, A022307.

%K nonn

%O 1,1

%A _Shyam Sunder Gupta_, Feb 05 2006

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Last modified April 25 05:18 EDT 2024. Contains 371964 sequences. (Running on oeis4.)