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 A025626 #17 Jul 06 2025 10:17:51
%S A025626 1,6,7,36,42,49,216,252,294,343,1296,1512,1764,2058,2401,7776,9072,
%T A025626 10584,12348,14406,16807,46656,54432,63504,74088,86436,100842,117649,
%U A025626 279936,326592,381024,444528,518616,605052,705894,823543,1679616,1959552
%N A025626 Numbers of form 6^i*7^j, with i, j >= 0.
%H A025626 Amiram Eldar, <a href="/A025626/b025626.txt">Table of n, a(n) for n = 1..10000</a>
%F A025626 Sum_{n>=1} 1/a(n) = (6*7)/((6-1)*(7-1)) = 7/5. - _Amiram Eldar_, Sep 25 2020
%F A025626 a(n) ~ exp(sqrt(2*log(6)*log(7)*n)) / sqrt(42). - _Vaclav Kotesovec_, Sep 25 2020
%F A025626 a(n) = 6^A025660(n) * 7^A025668(n). - _R. J. Mathar_, Jul 06 2025
%t A025626 n = 10^6; Flatten[Table[6^i*7^j, {i, 0, Log[6, n]}, {j, 0, Log[7, n/6^i]}]] // Sort (* _Amiram Eldar_, Sep 25 2020 *)
%Y A025626 Cf. A025610, A025622, A025627, A025628, A025629.
%Y A025626 Cf. A025619, A025631, A025632, A003591, A003594, A003595, A036566.
%K A025626 easy,nonn
%O A025626 1,2
%A A025626 _David W. Wilson_