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 A135665 #15 Sep 08 2022 08:45:32
%S A135665 0,0,0,0,0,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,3,
%T A135665 3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
%U A135665 5,6,6,6,6,6,6,6,6,6
%N A135665 a(n) = floor(sqrt(n) - n^(1/5)).
%H A135665 Vincenzo Librandi, <a href="/A135665/b135665.txt">Table of n, a(n) for n = 1..1000</a>
%t A135665 Table[Floor[n^(1/2) - n^(1/5)], {n, 100}] (* _Vincenzo Librandi_, Feb 18 2013 *)
%o A135665 (Magma) [Floor(n^(1/2)-n^(1/5)): n in [1..100]]; // _Vincenzo Librandi_, Feb 18 2013
%Y A135665 Cf. A000196, A048766, A134914, A135660, A135661, A135662, A135663, A135664.
%K A135665 nonn,easy
%O A135665 1,14
%A A135665 _Mohammad K. Azarian_, Nov 25 2007
%E A135665 Offset corrected by _Mohammad K. Azarian_, Nov 19 2008