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 A103661 #2 Mar 31 2012 10:29:09 %S A103661 11,34,77,154,257,447,675,1003,1391,1915,2381,3200,3977 %N A103661 Smallest value of 6*V not occurring in the list of 4-point object volumes assumed by triangular pyramids with their 4 vertices chosen from distinct points of an (n+1)X(n+1)X(n+1) lattice cube. %e A103661 See A103657. %Y A103661 For cross-references see A103657. %K A103661 hard,more,nonn %O A103661 2,1 %A A103661 _Hugo Pfoertner_, Feb 20 2005