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 A257584 #5 May 04 2015 21:48:48 %S A257584 7,14,19,29,41,46,56,67,80,88,104,109,119,130,134,142,149,163,173,184, %T A257584 197,214,221,226,236,247,260,268,284,298 %N A257584 Erroneous version of A006507. %C A257584 Included in accordance with OEIS policy of including published but erroneous sequences, to serve as pointers to the correct versions. %D A257584 Popular Computing (Calabasas, CA), The SLOWGROW Sequence, Vol. 3 (No. 30, Sep 1975), page PC30-10. %K A257584 dead %O A257584 1,1