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 A029643 #8 Jun 22 2013 16:05:36 %S A029643 2,2,2,2,16,2,2,36,2,2,196,140,64,2,336,204,2,714,540,100,2,1254,2, %T A029643 2640,1210,506,144,2,1716,650,2,8008,2366,196,2,2,37180,30888,20384, %U A029643 10556,4200,1240,256,2,68068,51272,30940,14756,5440,1496,2,140998,119340,82212 %N A029643 Even numbers to the right of the central numbers of the (1,2)-Pascal triangle A029635. %K A029643 nonn %O A029643 0,1 %A A029643 _Mohammad K. Azarian_ %E A029643 More terms from _David W. Wilson_