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 A079424 #3 Mar 30 2012 16:49:37 %S A079424 6,12,18,26,34,42,50,60,69,76,86,99,105,111,129,138,150,160,170,180, %T A079424 192,198,217,228,236,246,260,270,279,288,309,315,334,348,356,370,381, %U A079424 393,405,420,432,441,453,462,473,489,501,515,532,552,566,574,590,600,610,618,636 %N A079424 A bisection of A024675. Cf. A058296. %K A079424 nonn %O A079424 1,1 %A A079424 _N. J. A. Sloane_, Feb 16 2003