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 A057598 #1 May 16 2003 03:00:00 %S A057598 341,91,15,124,35,25,9,28,33,15,65,21,15,341,51,45,25,45,21,55,69,33, %T A057598 25,28,27,65,87,35,49,49,33,85,35,51,91,45,39,95,91,105,205,77,45,76, %U A057598 133,65,49,66,51,65,85,65 %N A057598 Erroneous version of A007535. %D A057598 A. H. Beiler, Recreations in the Theory of Numbers, Dover, NY, 1964, p. 42. %K A057598 dead %O A057598 2,1