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 A329268 #28 Nov 15 2019 12:02:27 %S A329268 1,2,3,4,8,9,10,11,22,23,24,25,29,58,59,60,61,65,66,67,68,88,142,143, %T A329268 144,145,149,150,209,300,301,302,303,307,315,317,319,322,325,650,651, %U A329268 652,653,657,658,659,660,671,673,675,677,680,705,706,711,712,713,716 %N A329268 Positions of 1 in A309797. %C A329268 This sequence is infinite. %H A329268 Rémy Sigrist, <a href="/A329268/b329268.txt">Table of n, a(n) for n = 1..1284</a> (terms < 2500000) %H A329268 Rémy Sigrist, <a href="/A329268/a329268.gp.txt">PARI program for A329268</a> %F A329268 a(A309797(n)) = 1. %F A329268 a(n+1) <= 2*a(n). %e A329268 A309797(67) = 1, hence 67 appears in the sequence. %o A329268 (PARI) See Links section. %Y A329268 Cf. A309797. %K A329268 nonn %O A329268 1,2 %A A329268 _Rémy Sigrist_, Nov 11 2019