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 A190458 #4 Mar 30 2012 18:57:28 %S A190458 13,34,68,89,123,157,178,212,233,246,267,301,322,356,390,411,445,466, %T A190458 500,534,555,589,610,623,644,678,699,733,767,788,822,843,877,911,932, %U A190458 966,1000,1021,1055,1076,1110,1144,1165,1199,1220 %N A190458 Positions of 0 in A190457. %C A190458 See A190457. %t A190458 (See A190457.) %Y A190458 Cf. A190457. %K A190458 nonn %O A190458 1,1 %A A190458 _Clark Kimberling_, May 10 2011