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 A054170 #4 Mar 30 2012 16:48:46 %S A054170 1,0,1,1,3,2,7,8,18,26,55,89,179,308,591,1086,2067,3834,7315,13767, %T A054170 26263,49884,95419,182260,349712,670912,1290852,2485217,4794087, %U A054170 9255772,17896831,34635738,67110875,130148520,252648981,490849470 %N A054170 Moebius transform of A000013 (starting at term 0). %K A054170 nonn %O A054170 0,5 %A A054170 _N. J. A. Sloane_, Apr 29 2000