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 A133505 #6 Nov 04 2013 13:01:50 %S A133505 0,1,2,3,4,5,6,7,8,9,24,25,26,27,28,29,36,37,38,39,48,49,58,59,69,79, %T A133505 89,99,893,894,895,896,897,898,899,994,995,996,997,998,999,2499,2599, %U A133505 2699,2799,2899,2999,3699,3789,3799,3889,3899,3989,3999,4889,4899,4989,4999,5899 %N A133505 Numbers where records occur in A133500. %H A133505 N. J. A. Sloane, <a href="/A133505/b133505.txt">Table of n, a(n) for n = 1..81</a> %Y A133505 Cf. A133504, A133500. %K A133505 nonn %O A133505 1,3 %A A133505 _J. H. Conway_ and _N. J. A. Sloane_, Dec 03 2007