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 A025692 #13 Jul 06 2025 13:22:40 %S A025692 1,2,3,5,7,9,12,15,19,23,27,32,37,43,49,55,62,69,76,84,92,101,110,119, %T A025692 129,139,150,161,172,184,196,208,221,234,248,262,276,291,306,322,338, %U A025692 354,371,388,406,424,442,461,480,499,519,539,560,581,602,624,646,669,692,715 %N A025692 Index of 2^n within sequence of numbers of form 2^i*6^j. %C A025692 Positions of zeros in A025656. - _R. J. Mathar_, Jul 06 2025 %H A025692 Robert Israel, <a href="/A025692/b025692.txt">Table of n, a(n) for n = 0..2500</a> %p A025692 N:= 100: # for a(0)..a(N) %p A025692 S:= sort([seq(seq(2^i*6^j,i=0..ilog2(2^N/6^j)),j=0..floor(log[6](2^N)))]): %p A025692 seq(ListTools:-BinarySearch(S,2^i),i=0..N); # _Robert Israel_, Jan 12 2021 %Y A025692 Cf. A000079, A025610. %K A025692 nonn %O A025692 0,2 %A A025692 _David W. Wilson_ %E A025692 Offset corrected by _Robert Israel_, Jan 12 2021