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 A137835 #4 Mar 31 2012 10:26:06 %S A137835 73,733,33223,35323,72253,72353,73327,73523,73553,75223,75253,77237, %T A137835 77323,77527,77557,3235223,3353323,3375233,3527233,3532733,3573523, %U A137835 3573733,3575333,3733333,3735233,3735353,3753353,3755273,3755333 %N A137835 Larger of emirps (pairs) with a prime number of only prime digits. %F A137835 Subsequence of A133753 %Y A137835 Cf. A137834. %K A137835 base,nonn %O A137835 1,1 %A A137835 _Lekraj Beedassy_, Feb 12 2008 %E A137835 Duplicate term removed and a(16)-a(29) from _Donovan Johnson_, Jun 06 2009