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 A027182 #4 Mar 30 2012 18:56:14 %S A027182 18,150,820,3726,15492,61660,240328,928110,3572692,13749580,52977216, %T A027182 204478276,790747504,3063728856,11891504944,46231328174,180005765748, %U A027182 701823431740,2739725128448,10707198384348,41888225645152,164027934617024 %N A027182 a(n) = self-convolution of row n of array T given by A027170. %K A027182 nonn %O A027182 0,1 %A A027182 _Clark Kimberling_