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 A035133 #35 May 14 2025 14:19:38 %S A035133 8,88,232,272,343,424,464,616,656,686,696,808,848,888,999,1331,2112, %T A035133 2552,2662,2992,3773,3993,4224,4664,6336,6776,8008,8448,8888,14641, %U A035133 18981,19791,21112,21312,21512,21712,21912,23032,23232,23432,23632 %N A035133 Cubeful (i.e., not cubefree) palindromes. %C A035133 Chourasiya & Johnston show that there are infinitely many palindromes not in this sequence. - _Charles R Greathouse IV_, May 14 2025 %H A035133 Amiram Eldar, <a href="/A035133/b035133.txt">Table of n, a(n) for n = 1..10000</a> (terms 1..627 from R. J. Mathar) %H A035133 Shashi Chourasiya and Daniel R. Johnston, <a href="https://arxiv.org/abs/2503.21136">Power-free palindromes and reversed primes</a>, arXiv preprint (2025). arXiv:2503.21136 [math.NT] %H A035133 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Cubefree.html">Cubefree</a>. %F A035133 A046099 INTERSECT A002113. - _R. J. Mathar_, Dec 08 2015 %e A035133 E.g., 34643 = 7^3 * 101. %t A035133 Select[Range[25000],PalindromeQ[#]&&Max[FactorInteger[#][[;;,2]]]>2&] (* _Harvey P. Dale_, Feb 18 2024 *) %Y A035133 Cf. A002113, A004709, A035132, A046099. %K A035133 nonn,base %O A035133 1,1 %A A035133 _Patrick De Geest_, Nov 15 1998