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 A135663 #22 Sep 08 2022 08:45:32
%S A135663 0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,
%T A135663 3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,
%U A135663 5,5,5,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,7
%N A135663 a(n) = floor(sqrt(n) - n^(1/4)).
%H A135663 Vincenzo Librandi, <a href="/A135663/b135663.txt">Table of n, a(n) for n = 1..1000</a>
%t A135663 Table[Floor[n^(1/2) - n^(1/4)], {n, 100}] (* _Vincenzo Librandi_, Feb 18 2013 *)
%o A135663 (Magma) [Floor(n^(1/2)-n^(1/4)): n in [1..100]]; // _Vincenzo Librandi_, Feb 18 2013
%Y A135663 Cf. A000196, A048766, A134914, A135660, A135661, A135662.
%K A135663 nonn,easy
%O A135663 1,16
%A A135663 _Mohammad K. Azarian_, Nov 25 2007
%E A135663 More terms from _N. J. A. Sloane_, Aug 08 2008
%E A135663 Offset changed from 0 to 1 by _Vincenzo Librandi_, Feb 18 2013