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 A103426 #4 Mar 31 2012 10:29:09 %S A103426 14,719,10322,78973,412666,1662616,5550432,16056600,41504082,97957235, %T A103426 214501838,441056849,859632934,1599921616,2860527328,4937138832, %U A103426 8259305646,13437461703,21322651346,33080660021,50283889886,75023188336 %N A103426 (1/4)*Number of non-degenerate triangles that can be formed from the points of an (n+1)X(n+1)X(n+1) lattice cube. %Y A103426 Cf. special triangles in lattice cube: A103427, A103428, A103429, A103499, A103500, A103501; A103158 tetrahedra in lattice cube. %K A103426 nonn %O A103426 1,1 %A A103426 _Hugo Pfoertner_, Feb 08 2005