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 A071914 #5 Mar 30 2012 17:27:35 %S A071914 33,176,303,323,343,363,383,403,423,443,463,483,1221,1616,1636,1656, %T A071914 1676,1696,1716,1736,1756,1776,1796,2761,3003,4983,12021,12421,12621, %U A071914 12821,13021,13221,13421,13621,13821,16016,17996,18238,19778,26161 %N A071914 Numbers n of the form k + reverse(k) for exactly three k. %H A071914 <a href="/index/Res#RAA">Index entries for sequences related to Reverse and Add!</a> %e A071914 33 = 12 + 21 = 21 + 12 = 30 + 03, 176 = 79 + 97 = 88 + 88 = 97 + 79, 383 = 142 + 241 = 241 + 142 = 340 + 043. %Y A071914 Cf. A067030, A071265, A072040, A072041. %K A071914 base,nonn %O A071914 0,1 %A A071914 _Klaus Brockhaus_, Jun 13 2002