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 A276142 #13 Aug 26 2016 23:23:18 %S A276142 1,2,3,4,5,6,7,8,9,279972,2774772,5499945,25477452,27722772,254545452, %T A276142 277202772,279999972,2133333312,2522772252,2545225452,2772002772, %U A276142 4266666624,6399999936,21331413312,23466666432,25225452252,25452025452,25479997452,27720002772 %N A276142 Solutions to x/SOD(x) = y, where x and y are palindromes, a(n)=x. %C A276142 "SOD" = "sum of digits", A007953. %C A276142 Subset of intersection of A002113 and A005349. - _David A. Corneth_, Aug 23 2016 %H A276142 Lars Blomberg, <a href="/A276142/b276142.txt">Table of n, a(n) for n = 1..10000</a> %H A276142 C. Rivera, PrimePuzzles.Net, <a href="http://www.primepuzzles.net/puzzles/puzz_041.htm">Puzzle 41.- Palindromic Carnival</a>, section B. %e A276142 279972/SOD(279972) = 279972/36 = 7777, so 279972 is a term. %Y A276142 See A276143 for the SOD(x) values. %Y A276142 See A276144 for the y values. %Y A276142 Cf. A002113, A005349, A007953. %K A276142 nonn,base %O A276142 1,2 %A A276142 _Lars Blomberg_, Aug 22 2016