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 A016020 #9 Mar 30 2012 17:30:18 %S A016020 1,2,4,8,16,32,6,128,256,512,1024,12,4096,8192,16384,32768,24,131072, %T A016020 262144,524288,36,48,4194304,8388608,16777216,33554432,96,134217728, %U A016020 268435456,72,1073741824,30,4294967296,8589934592,17179869184 %N A016020 Least k such that (tau(k^4)+3)/4=n. %K A016020 nonn %O A016020 0,2 %A A016020 _Robert G. Wilson v_ %E A016020 More terms from _Robert G. Wilson v_, Aug 06 2005 %E A016020 Definition corrected by Vladeta Jovovic, Sep 03 2005 %E A016020 Extended by _Ray Chandler_, Sep 05 2008