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 A046499 #15 Aug 11 2024 14:41:31 %S A046499 22,242,464,868,4664,8668,40604,44644,48684,80608,84648,88688,406604, %T A046499 446644,486684,806608,846648,886688,4006004,4046404,4086804,4406044, %U A046499 4446444,4486844,4806084,4846484,4886884,8006008,8046408,8086808 %N A046499 Palindromes expressible as the sum of 4 consecutive palindromes. %C A046499 All digits of all terms are even. - _Harvey P. Dale_, Jan 25 2013 %H A046499 Harvey P. Dale, <a href="/A046499/b046499.txt">Table of n, a(n) for n = 1..700</a> %H A046499 P. De Geest, <a href="https://www.worldofnumbers.com/index.html">World!Of Numbers</a> %e A046499 22 = 4 + 5 + 6 + 7; %e A046499 242 = 44 + 55 + 66 + 77. %Y A046499 Cf. A002113. %K A046499 nonn,base %O A046499 1,1 %A A046499 _Patrick De Geest_, Sep 15 1998