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 A076117 #4 Dec 05 2013 19:55:46 %S A076117 1,27,27,0,125,27,343,0,216,125,1331,0,2197,343,3375,216,4913,729, %T A076117 6859,0,9261,1331,12167,0,1000,2197,729,0,24389,3375,29791,0,35937, %U A076117 4913,42875,0,50653,6859,59319,0,68921,9261,79507,0,3375,12167,103823,5832 %N A076117 Cubes (or 0) from A076116. %F A076117 Let c = A076116(n); if c > 0, then a(n) = n*(2c + n - 1)/2. If c = 0 then a(n) = 0. - _David Wasserman_, Apr 02 2005 %Y A076117 Cf. A076116. %Y A076117 Cf. A076115. %K A076117 nonn %O A076117 1,2 %A A076117 _Amarnath Murthy_, Oct 09 2002 %E A076117 More terms from _David Wasserman_, Apr 02 2005