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 A139587 #10 Jun 20 2021 17:06:52
%S A139587 6,10,12,14,15,18,20,22,26,27,28,32,33,35,36,38,39,44,45,46,48,50,51,
%T A139587 52,57,58,60,62,63,64,65,68,69,72,74,75,76,77,80,82,84,85,86,87,90,91,
%U A139587 92,93,94,95,96,98,99,100,106,108,111
%N A139587 Non-Fibonacci numbers with non-Fibonacci number of divisors.
%C A139587 A000005(a(n)) is not a Fibonacci number.
%H A139587 Harvey P. Dale, <a href="/A139587/b139587.txt">Table of n, a(n) for n = 1..1000</a>
%e A139587 6 belongs to the sequence because it is not a Fibonacci number and its number of divisors, 4, is also not a Fibonacci number.
%t A139587 With[{fibs=Fibonacci[Range[12]]},Select[Range[Max[fibs]],FreeQ[fibs,#] && FreeQ[fibs,DivisorSigma[0,#]]&]] (* _Harvey P. Dale_, Jun 20 2021 *)
%Y A139587 Non-Fibonacci number: A001690. Cf. A000005, A000045, A139095, A139586, A139588, A139589, A139590.
%K A139587 easy,nonn
%O A139587 1,1
%A A139587 _Omar E. Pol_, May 22 2008
%E A139587 Example clarified by _Harvey P. Dale_, Jun 20 2021