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 A254000 #22 May 23 2025 11:09:43
%S A254000 0,1,17210368,52521875,60466176,205962976
%N A254000 Numbers equal to the fifth powers of the sums of their digits.
%D A254000 Alfred S. Posamentier, Math Charmers, Tantalizing Tidbits for the Mind, Prometheus Books, NY, 2003, page 36.
%F A254000 a(n) = A055576(n)^5. - _Michel Marcus_, Feb 23 2015
%e A254000 205962976 = 46^5 = (2 + 0 + 5 + 9 + 6 + 2 + 9 + 7 + 6)^5.
%t A254000 Select[Range@ 210000000, Plus @@ IntegerDigits@ # ^ 5 == # &] (* _Michael De Vlieger_, Feb 25 2015 *)
%o A254000 (PARI) lista(nn) = {for (n=0, nn, if (n^5 == sumdigits(n^5)^5, print1(n^5, ", ")););} \\ _Michel Marcus_, Feb 23 2015
%Y A254000 Cf. A061209 (with cubes), A061210 (with 4th powers), A061211.
%K A254000 nonn,fini,full,base
%O A254000 1,3
%A A254000 _Michal Paulovic_, Jan 21 2015