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 A164486 #16 Oct 27 2017 18:55:24 %S A164486 1,2,4,8,13,20,28,38,49,62,76,92,109,128,148,170,193,218,244,272,301, %T A164486 332,364,398 %N A164486 Duplicate of A084684. %H A164486 <a href="/A164486/b164486.txt">Table of n, a(n) for n = 0..23</a> %K A164486 dead %O A164486 0,2