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 A025614 #15 Jul 06 2025 10:00:52
%S A025614 1,3,6,9,18,27,36,54,81,108,162,216,243,324,486,648,729,972,1296,1458,
%T A025614 1944,2187,2916,3888,4374,5832,6561,7776,8748,11664,13122,17496,19683,
%U A025614 23328,26244,34992,39366,46656,52488,59049,69984,78732,104976,118098
%N A025614 Numbers of form 3^i*6^j, with i, j >= 0.
%H A025614 Amiram Eldar, <a href="/A025614/b025614.txt">Table of n, a(n) for n = 1..10000</a>
%F A025614 Sum_{n>=1} 1/a(n) = (3*6)/((3-1)*(6-1)) = 9/5. - _Amiram Eldar_, Sep 26 2020
%F A025614 a(n) ~ exp(sqrt(2*log(3)*log(6)*n)) / sqrt(18). - _Vaclav Kotesovec_, Sep 26 2020
%F A025614 a(n) = 3^A025641(n) *6^A025657(n). - _R. J. Mathar_, Jul 06 2025
%t A025614 n = 10^6; Flatten[Table[3^i*6^j, {i, 0, Log[3, n]}, {j, 0, Log[6, n/3^i]}]] // Sort (* _Amiram Eldar_, Sep 26 2020 *)
%Y A025614 A025628 is a subsequence.
%Y A025614 Cf. A003586, A003593, A003594, A003597, A107364.
%Y A025614 Cf. A025610, A025618, A025622, A025626, A025627.
%K A025614 easy,nonn
%O A025614 1,2
%A A025614 _David W. Wilson_