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 A179918 #6 Feb 22 2013 21:38:32
%S A179918 23719,31379,52379,111373,111731,111733,112397,113117,113167,113723,
%T A179918 113759,113761,115237,117191,117431,121139,122971,123113,123373,
%U A179918 123479,123731,124337,126173,126317,127139,127733,127739,127973,129733,131171
%N A179918 Primes with ten embedded primes.
%C A179918 A079066(a(n)) = 10.
%t A179918 f[n_] := Block[ {id = IntegerDigits@n}, len = Length@ id - 1; Count[ PrimeQ@ Union[ FromDigits@# & /@ Flatten[ Table[ Partition[ id, k, 1], {k, len}], 1]], True] + 1]; Select[ Prime@ Range@ 12280, f@# == 11 &]
%o A179918 (Haskell)
%o A179918 import Data.List (elemIndices)
%o A179918 a179918 n = a179918_list !! (n-1)
%o A179918 a179918_list = map (a000040 . (+ 1)) $ elemIndices 10 a079066_list
%o A179918 -- _Reinhard Zumkeller_, Jul 19 2011
%Y A179918 Cf. A039996, A079397, A033274, A034844, A092621, A179909 - A179919, A033274.
%K A179918 base,nonn
%O A179918 1,1
%A A179918 _Robert G. Wilson v_, Aug 01 2010