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 A054213 #16 Dec 17 2020 14:26:38 %S A054213 0,225313610074846875,312343781246875156246875, %T A054213 119665765800843104737370354851986949, %U A054213 2439979134100773706931016420916722663424,117195225794292252449115584887987847895470100000,10334956410016814668660393585195309584134568401459883099,1010431164918909763339703798486498718473866680301776494470190368 %N A054213 Smallest fifth powers whose decimal expansion digits occur with same frequency n. %C A054213 Terms calculated by _Jeff Heleen_. %H A054213 Michael S. Branicky, <a href="/A054213/b054213.txt">Table of n, a(n) for n = 1..8</a> %H A054213 Patrick De Geest, <a href="http://www.worldofnumbers.com/samedigits.htm">Numbers whose digits occur with same frequency</a> %e A054213 2955^5 = 225313610074846875 and digits 0, 1, 2, 3, 4, 5, 6, 7, and 8 each occur twice. %o A054213 (Python) %o A054213 g = agen() # agen() in A054212 %o A054213 print([next(g)**5 for n in range(1, 5)]) # _Michael S. Branicky_, Dec 17 2020 %Y A054213 Cf. A054212, A052093, A052094, A052069, A052071. %Y A054213 Subsequence of A000584. %K A054213 nonn,base,hard %O A054213 1,2 %A A054213 _Patrick De Geest_, Feb 15 2000 %E A054213 Offset corrected by _Michel Marcus_, Aug 12 2015 %E A054213 a(6)-a(8) from _Michael S. Branicky_, Dec 17 2020