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 A119260 #2 Mar 30 2012 17:26:21
%S A119260 0,2,4,6,8,24,26,28,46,48,68,246,248,268,468,2468
%N A119260 Numbers with even decimal digits in increasing order.
%C A119260 This is the complete list of all 16 such numbers. Cf. A119261 Even decimal digits in decreasing order, A119253 Odd digits in increasing order, A119252 Odd digits in decreasing order, A009993 Digits in increasing order, A009995 Digits in decreasing order.
%t A119260 Flatten@Table[FromDigits/@Subsets[Range[2,8,2],{n}],{n,0,5}]
%Y A119260 Cf. A009993, A009995, A119252, A119253, A119261.
%K A119260 base,fini,full,nonn
%O A119260 1,2
%A A119260 _Zak Seidov_, May 11 2006