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 A035131 #16 Feb 16 2025 08:32:37 %S A035131 1,8,512,95443993 %N A035131 Cubes that when digits rotated left once remain cubic. %C A035131 Those resulting in leading zeros excluded. %H A035131 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/CubicNumber.html">Cubic Number</a> %e A035131 8^3 = 512 and 125 = 5^3. %t A035131 Select[Range[500]^3, (d = RotateLeft @ IntegerDigits[#])[[1]] > 0 && IntegerQ @ Surd[FromDigits @ d, 3] &] (* _Amiram Eldar_, Oct 08 2019 *) %Y A035131 Cf. A035127, A035129, A035130. %K A035131 nonn,base,hard %O A035131 1,2 %A A035131 _Patrick De Geest_, Nov 15 1998