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 A353734 #11 May 19 2022 23:13:30 %S A353734 1,2,4,9,19,79,159,319,1279,10239,20479,40959,163839,1310719,5242879, %T A353734 10485759 %N A353734 Indices of terms in A353730 that are powers of 2. %C A353734 The powers of 2 appear in the order 2, 1, 4, 8, 16, ... Every power of 2 will eventually appear in A353730 (in increasing order except for the initial inversion), so the sequence is infinite. %C A353734 a(17) >= 83886079, since A353730(20971519) = 42002 and A353730(41943039) = 60626. - _Russ Cox_, May 19 2022 %e A353734 A353730(79) = 32, so 79 is a term. %Y A353734 Cf. A353730. %K A353734 nonn,more %O A353734 1,2 %A A353734 _N. J. A. Sloane_, May 18 2022 %E A353734 a(9) from _Chai Wah Wu_, May 18 2022 %E A353734 a(10) from _Chai Wah Wu_, May 19 2022 %E A353734 a(11)-a(16) from _Russ Cox_, May 19 2022