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 A029641 #8 Jun 22 2013 16:05:36 %S A029641 4,6,14,16,20,30,8,50,36,10,44,112,182,196,140,64,54,156,294,378,336, %T A029641 204,12,210,450,672,714,540,100,660,1122,1386,1254,14,90,352,1782, %U A029641 2508,2640,1210,506,144,104,442,4290,5148,1716,650,16,546,4004,9438,8008,2366,196 %N A029641 Even numbers in the (1,2)-Pascal triangle A029635 that are different from 2. %K A029641 nonn %O A029641 0,1 %A A029641 _Mohammad K. Azarian_ %E A029641 More terms from _David W. Wilson_