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 A135660 #21 Sep 08 2022 08:45:32
%S A135660 0,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,3,
%T A135660 3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,5,5,5,5,
%U A135660 5,5,5,5,5,5,5,5,5,5
%N A135660 a(n) = ceiling(sqrt(n) - n^(1/3)).
%H A135660 Vincenzo Librandi, <a href="/A135660/b135660.txt">Table of n, a(n) for n = 1..999</a>
%t A135660 Table[Ceiling[n^(1/2) - n^(1/3)], {n, 100}] (* _Vincenzo Librandi_, Feb 16 2013 *)
%o A135660 (Magma) [Ceiling(n^(1/2) - n^(1/3)): n in [1..100]]; // _Vincenzo Librandi_, Feb 16 2013
%Y A135660 Cf. A000196, A048766, A134914.
%K A135660 nonn,easy
%O A135660 1,10
%A A135660 _Mohammad K. Azarian_, Nov 25 2007
%E A135660 Changed offset from 2 to 1 by _Vincenzo Librandi_, Feb 16 2013