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 A046335 #9 Apr 12 2017 03:13:40 %S A046335 4224,6336,21312,23232,27072,213312,276672,618816,2133312,2177712, %T A046335 2198912,2308032,2513152,2536352,2545452,2551552,2553552,2572752, %U A046335 2597952,2725272,2745472,2747472,2774772,2970792,2994992,4099904 %N A046335 Palindromes with exactly 9 prime factors (counted with multiplicity). %H A046335 John Cerkan, <a href="/A046335/b046335.txt">Table of n, a(n) for n = 1..10000</a> %Y A046335 Cf. A046312, A046322. %K A046335 nonn,base %O A046335 1,1 %A A046335 _Patrick De Geest_, Jun 15 1998