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 A165289 #12 May 01 2013 21:13:44
%S A165289 0,1,3,8,9,12,15,17,18,19,22,24,30,36,37,38,40,44,55,57,64,65,68,71,
%T A165289 73,79,80,89,97,98,100,101,106,107,108,112,113,119,121,128,129,138,
%U A165289 141,145,148,151,154,156,161,163,164,168,169,171,172,190,196,197,198,204,208
%N A165289 Nonnegative integers of the form m^2 - floor(m^(2/3))^3 where m is a positive integer.
%C A165289 The positive terms form a subsequence of A087286. Some terms of A087286 are missing here, the smallest such number being 3781 = (6^3)^2 - (6^2-1)^3. [From Max Alekseyev, Jun 19 2011]
%t A165289 lst={}; Do[a=(x=n^2)-(y=Floor[(n^2)^(1/3)]^3); If[a<=416,AppendTo[lst,a]], {n,8!}]; Take[Union@lst,100]
%Y A165289 Cf. A087286, A165288.
%K A165289 nonn
%O A165289 1,3
%A A165289 _Vladimir Joseph Stephan Orlovsky_, Sep 13 2009
%E A165289 Minor edits by _N. J. A. Sloane_, Oct 24 2009
%E A165289 Definition corrected by _Max Alekseyev_, Jun 19 2011