%I A054260
%S A054260 2,23,523,2357,112573,511327,1135217,1113251719,11171323519,
%T A054260 113171952923,113171952923,11131951723729,11317237419529,1131723294375419,
%U A054260 113172329541947437,1131723294195343747,1113172329419434753759
%N A054260 Smallest prime that contains all of the first n primes as substrings.
%C A054260 The 10th and 11th terms are identical because the smallest prime containing 
               all primes through 29 as substrings also happens to include 31. - 
               Jon E. Schoenfield (jonscho(AT)hiwaay.net), Sep 10 2006
%H A054260 <a href="http://www.math.niu.edu/~rusin/known-math/95/1000digits">Related 
               problem</a>
%Y A054260 Cf. A054261, A035239.
%Y A054260 Sequence in context: A119774 A074649 A134355 this_sequence A053160 A167416 
               A053066
%Y A054260 Adjacent sequences: A054257 A054258 A054259 this_sequence A054261 A054262 
               A054263
%K A054260 nonn,base,nice
%O A054260 1,1
%A A054260 Patrick De Geest (pdg(AT)worldofnumbers.com), Feb 15 2000.
%E A054260 More terms from Jon E. Schoenfield (jonscho(AT)hiwaay.net), Sep 10 2006, 
               corrected Oct 01 2006