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 A238105 #3 Mar 01 2014 11:50:56 %S A238105 0,1,0,9,3,9,24,27,33,42,18,3,6,30,69,21,87,90,48,42,12,18,57,66,144, %T A238105 6,51,75,162,168,63,195,12,69,222,102,117,120,249,69,267,270,123,288, %U A238105 147,135,45,333,162,342,348,6,45,75,384,393,402,6,108,42,207,219,225,204,468,117,165,504,252,174 %N A238105 A238104(n)/3. %Y A238105 Cf. A238104. %K A238105 nonn,base %O A238105 1,4 %A A238105 _N. J. A. Sloane_, Mar 01 2014