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 A104782 #12 Feb 23 2025 09:25:26 %S A104782 1,32,243,64,25,36,16807,32768,729,100,285311670611,1283918464548864, %T A104782 137858491849,1475789056,3787675244106352329254150390625,16777216, %U A104782 827240261886336764177,1889568,116490258898219,3200000,85766121 %N A104782 Smallest n^e (e>1) containing n in decimal representation. %C A104782 a(n) = n^A045537(n). %H A104782 Reinhard Zumkeller, <a href="/A104782/b104782.txt">Table of n, a(n) for n = 1..1000</a> %o A104782 (Python) %o A104782 from itertools import count %o A104782 def a(n): %o A104782 s = str(n) %o A104782 return next(n**e for e in count(2) if s in str(n**e)) %o A104782 print([a(n) for n in range(1, 22)]) # _Michael S. Branicky_, Feb 23 2025 %Y A104782 Cf. A051248, A070327. %K A104782 nonn,base %O A104782 1,2 %A A104782 _Reinhard Zumkeller_, Mar 25 2005