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 A172422 #9 Sep 04 2023 15:26:54
%S A172422 256,512,1024,2048,4096,6561,8192,16384,19683,32768,59049,65536,
%T A172422 131072,177147,262144,294912,314928,331776,354294,373248,390625,
%U A172422 393216,419904,442368,472392,497664,524288,531441,559872,589824,629856,663552,708588,746496,786432
%N A172422 Numbers k that have measure of smoothness J larger than 7, where J = log(k)/log(rad(k)) and rad(k) is the product of the distinct prime divisors of k (A007947).
%C A172422 This sequence is a subsequence of A049094, A172418, A172419, A172420, and A172421.
%H A172422 Amiram Eldar, <a href="/A172422/b172422.txt">Table of n, a(n) for n = 1..500</a>
%t A172422 aa = {}; Do[kk = FactorInteger[c]; nn = 1; Do[nn = nn*kk[[n]][[1]], {n, 1, Length[kk]}]; If[Log[c]/Log[nn] > 7, AppendTo[aa, c]], {c, 2, 10000}]; aa
%Y A172422 Cf. A007947, A049094, A059172, A172418, A172419, A172420, A172421.
%K A172422 nonn
%O A172422 1,1
%A A172422 _Artur Jasinski_, Feb 02 2010
%E A172422 More terms from _Amiram Eldar_, Mar 10 2020