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 A381118 #14 Feb 16 2025 05:40:43 %S A381118 1,2,7,16,64,256,975,3856,16647,65039,260112,1044504,4177980,16777224 %N A381118 Index of 2^n in A381019. %C A381118 Every power of 2 appears in A381019 (see that entry for proof). %Y A381118 Cf. A381019, A381115, A381116. %K A381118 nonn,more %O A381118 0,2 %A A381118 _N. J. A. Sloane_, Feb 14 2025 %E A381118 a(7) from _Michael S. Branicky_, Feb 14 2025 %E A381118 a(8) from _Michael S. Branicky_, Feb 15 2025 %E A381118 a(9)-a(13) from _Jinyuan Wang_, Feb 16 2025