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Search: id:A109166
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%I A109166
%S A109166 1,37,58,119,130,195,292,419,453,464,561,617,618,652,679,720,762,787,
%T A109166 827,830,945,1034,1090,1139,1191,1200,1344,1383,1386,1451,1496,1519,
%U A109166 1774,1783,1820,1822,1911,1966,1973,2018,2128,2219,2247,2378,2566,2644
%N A109166 Numbers n such that the concatenation of consecutive increasing numbers 
               beginning with prime(n) and ending with prime(n+1) is prime; or n 
               such that A111875(n) is prime.
%C A109166 Honaker's prime curiosity corresponds to a(2)=37. Concatenating all the 
               increasing numbers from prime(1473480)=23428439 to prime(1473481)=23428523 
               produces a 680-digit prime (certified).
%H A109166 G. L. Honaker, Jr., <a href="http://primes.utm.edu/curios/page.php/157158159160161162163.html">
               Prime Curios</a>
%e A109166 a(3)=58 because prime(58)=271 and prime(59)=277 and 271272273274275276277
%e A109166 is prime.
%Y A109166 Sequence in context: A045223 A134222 A127023 this_sequence A090798 A000928 
               A073276
%Y A109166 Adjacent sequences: A109163 A109164 A109165 this_sequence A109167 A109168 
               A109169
%K A109166 easy,nonn,base
%O A109166 1,2
%A A109166 Jason Earls (zevi_35711(AT)yahoo.com), Aug 18 2005

    
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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.


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