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 A054848 #3 Mar 30 2012 18:51:25 %S A054848 0,0,-1,0,-1,0,1,-1,0,1,-1,0,1,-2,-1,0,1,-2,-1,0,1,-2,-1,0,1,-2,-1,0, %T A054848 1,2,-2,-1,0,1,2,-1,0,1,2,-3,-2,-1,0,1,2,-2,-1,0,1,2,-2,-1,0,1,2,3,-2, %U A054848 -1,0,1,2,3,-2,-1,0,1,2,3,-2,-1,0,1,2,3,-2,-1,0,1,2,3,-3,-2,-1,0,1,2,3,-2 %N A054848 n - nearest integer to (nearest integer to n^(2/3))^(3/2). %F A054848 a(n) = n-A002821(A054846(n)) = n-A054847(n) %Y A054848 Cf. A002821, A054846, A054847. %K A054848 easy,sign %O A054848 0,14 %A A054848 _Henry Bottomley_, Apr 14 2000