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 A046377 #11 Nov 06 2015 04:08:56 %S A046377 8,44,66,99,242,343,363,404,606,909,1331,2222,2882,3333,5555,6886, %T A046377 7777,12221,15851,20402,26462,30603,37873,39693,112211,145541,167761, %U A046377 226622,248842,339933,347743,662266,664466,668866,682286,993399,996699,1030301,1246421 %N A046377 Palindromes with exactly 3 palindromic prime factors (counted with multiplicity). %H A046377 Lars Blomberg, <a href="/A046377/b046377.txt">Table of n, a(n) for n = 1..1000</a> %e A046377 The palindrome 996699 is a term since it has 3 factors 3 11 30203, all palindromic. %Y A046377 Cf. A046329, A046409. %K A046377 nonn,base %O A046377 1,1 %A A046377 _Patrick De Geest_, Jun 15 1998 %E A046377 More terms from _Lars Blomberg_, Nov 06 2015