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 A046334 #11 Sep 11 2019 09:05:57 %S A046334 2112,25152,29792,67776,84448,219912,252252,270072,272272,464464, %T A046334 616616,631136,652256,656656,696696,698896,801108,802208,828828, %U A046334 840048,848848,861168,882288,886688,888888,2110112,2150512,2171712,2175712 %N A046334 Palindromes with exactly 8 prime factors (counted with multiplicity). %H A046334 John Cerkan, <a href="/A046334/b046334.txt">Table of n, a(n) for n = 1..10000</a> %t A046334 Select[Range[22*10^5],PalindromeQ[#]&&PrimeOmega[#]==8&] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Sep 11 2019 *) %Y A046334 Cf. A046310, A046321. %K A046334 nonn,base %O A046334 1,1 %A A046334 _Patrick De Geest_, Jun 15 1998