%I A047076
%S A047076 2,30203,133020331,1713302033171,12171330203317121,151217133020331712151,
               1815121713302033171215181,
%T A047076 16181512171330203317121518161,331618151217133020331712151816133,
%U A047076 9333161815121713302033171215181613339,11933316181512171330203317121518161333911
%N A047076 a(n+1) is the smallest palindromic prime containing exactly 2 more digits 
               on each end than the previous term, with a(n) as a central substring.
%D A047076 Pickover, Clifford A., A Passion for Mathematics: Numbers, Puzzles, Madness, 
               Religion and the Quest for Reality, John Wiley & Sons, Inc., Hoboken, 
               New Jersey (2005) p. 108.
%H A047076 C. K. Caldwell, <a href="http://primes.utm.edu/glossary/page.php?sort=PalindromicPrime">
               Palindromic Primes</a>
%Y A047076 Cf. A053600.
%Y A047076 Sequence in context: A131558 A133857 A153912 this_sequence A030462 A001377 
               A055578
%Y A047076 Adjacent sequences: A047073 A047074 A047075 this_sequence A047077 A047078 
               A047079
%K A047076 base,fini,full,nice,nonn
%O A047076 1,1
%A A047076 G. L. Honaker, Jr. (honak3r(AT)gmail.com), Jan 26 2000