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 A025068 #7 Aug 05 2019 02:35:56 %S A025068 3,4,7,11,25,40,76,123,199,322,550,890,1487,2406,3969,6422,10391, %T A025068 16813,27403,44339,72064,116602,189187,306111,496141,802773,1298914, %U A025068 2101687,3402808,5505859,8912238 %N A025068 Erroneous version of A024368. %K A025068 dead %O A025068 1,1 %A A025068 _Clark Kimberling_