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 A353405 #12 May 07 2022 09:40:19 %S A353405 1,2,3,4,6,8,12,18,37,68,89,184,338,548,1029,2141,3914,7121,11830, %T A353405 22923,38692,75029,124846,223140,419105,807096,1385673,2636205, %U A353405 4649883,8759535,16901645,29744020,56292997,105932907 %N A353405 Index of 2^n in A353709. %H A353405 Rémy Sigrist, <a href="/A353405/a353405.txt">C++ program</a> %e A353405 A353709(1029) = 16384 = 2^14, so a(14) = 1029. %o A353405 (C++) See Links section. %Y A353405 Cf. A305370, A353709. %K A353405 base,nonn,more %O A353405 0,2 %A A353405 _Rémy Sigrist_, May 07 2022