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 A029658 #8 Jul 02 2025 16:01:56 %S A029658 2,2,2,4,2,2,16,14,6,2,30,20,2,36,50,8,2,2,64,140,196,182,112,44,10,2, %T A029658 204,336,378,294,156,54,2,100,540,714,672,450,210,12,2,1254,1386,1122, %U A029658 660,2,144,506,1210,2640,2508,1782,352,90,14,2,650,1716,5148,4290,442 %N A029658 Even numbers in the (2,1)-Pascal triangle A029653. %K A029658 nonn,tabf %O A029658 0,1 %A A029658 _Mohammad K. Azarian_ %E A029658 More terms from _James Sellers_