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 A072641 #7 Oct 17 2024 08:22:16 %S A072641 0,1,2,4,7,12,22,42,83,164,326,651,1301,2601,5201,10400,20798,41594, %T A072641 83187,166373,332744,665487,1330972,2661943,5323885,10647769,21295536, %U A072641 42591070,85182139,170364276,340728551,681457100 %N A072641 Binary widths of the terms of A072638. %Y A072641 Cf. A072642, A072655. %K A072641 nonn,more %O A072641 0,3 %A A072641 _Antti Karttunen_, Jun 02 2002 %E A072641 More terms from _Sean A. Irvine_, Oct 17 2024