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 A054174 #6 Oct 18 2014 16:52:43 %S A054174 1,0,0,0,1,2,4,8,15,26,50,90,169,310,583,1082,2047,3837,7279,13769, %T A054174 26209,49878,95324,182260,349518,670918,1290539,2485189,4793489, %U A054174 9255782,17895678,34635742,67108813,130148445,252645129,490849458 %N A054174 Moebius transform of A000048 (starting at term 0). %H A054174 N. J. A. Sloane, <a href="/transforms.txt">Transforms</a> %K A054174 nonn %O A054174 0,6 %A A054174 _N. J. A. Sloane_, Apr 29 2000