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 A094084 #4 Oct 06 2013 15:46:41 %S A094084 1,3,4,27,64,675,256,3675,16384,297675,65536,1440747,1048576,27054027, %T A094084 4194304,124227675,1073741824,35901798075,4294967296,160006779075, %U A094084 68719476736,2822519582883,274877906944,12339775697067,17592186044416 %N A094084 Denominators associated with A094083. %Y A094084 Cf. A005386, A092936, A094083. %K A094084 easy,frac,nonn %O A094084 1,2 %A A094084 _Peter J. C. Moses_, Apr 30 2004