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 A027155 #4 Mar 30 2012 18:56:14 %S A027155 2,4,8,16,48,80,288,512,1536,2816,9472,16128,58880,103424,337920, %T A027155 606208,2113536,3620864,13303808,23265280,78905344,140181504, %U A027155 497352704,854523904,3150839808,5497421824,19039518720,33639366656 %N A027155 Greatest number in row n of array T given by A027144. %K A027155 nonn %O A027155 0,1 %A A027155 _Clark Kimberling_