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 A056032 #7 Apr 12 2022 22:22:29
%S A056032 4,9,24,49,51,75,99,125,249,251,375,499,501,624,749,751,875,999,1249,
%T A056032 3751,4375,4999,5001,5625,6249,8751,9375,9999,18751,31249,40625,49999,
%U A056032 50001,59375,68751,81249,90624,99999,109375,218751,281249,390625,499999
%N A056032 Trimorphic but not bimorphic nor automorphic.
%t A056032 Do[x=Floor[N[Log[10, n],25]]+1; If[Mod[n^3, 10^x] == n,If[Mod[n^2, 10^x]!= n, Print[n]]], {n,5*10^5}]
%Y A056032 Cf. A003226 and A033819.
%K A056032 easy,nonn
%O A056032 1,1
%A A056032 _Robert G. Wilson v_, Jul 24 2000
%E A056032 Missing a(41) inserted by _Sean A. Irvine_, Apr 12 2022