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 A033841 #13 Dec 11 2021 04:35:12 %S A033841 2,41,27,353,243,36804,2187,6287267,19683,403584750,177147, %T A033841 42256814922,1594323,1447031689954,14348907,320659684133768,129140163, %U A033841 117025292105903,1162261467,170554117891588216,10460353203 %N A033841 Smallest number > 1 equal to sum of n-th powers of its base-9 digits, or 0 if no such number exists (written in base 10). %H A033841 Joseph Myers, <a href="/A033841/b033841.txt">Table of n, a(n) for n=1..125</a> %Y A033841 Cf. A162234, A162235, A162236. In other bases: A033835 (base 3), A033836 (base 4), A033837 (base 5), A033838 (base 6), A033839 (base 7), A033840 (base 8), A003321 (base 10). - _Joseph Myers_, Jul 07 2009 %K A033841 nonn,base %O A033841 1,1 %A A033841 _David W. Wilson_ %E A033841 Extended by _Joseph Myers_, Jul 07 2009