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 A022306 #3 Mar 30 2012 18:55:50 %S A022306 1,2,3,5,6,7,8,9,10,11,12,13,16,17,18,19,20,21,22,23,25,26,27,28,29, %T A022306 30,32,33,34,35,36,37,38,39,41,42,47,50,51,56,57,59,60,61,62,63,64,66, %U A022306 67,68,69,70,71,72,73,74,77,78,79,80,82,83,86,87,88,89,90,91,92 %N A022306 Sequence A022305 divided by 2. %K A022306 nonn %O A022306 0,2 %A A022306 _Clark Kimberling_