%I A053600
%S A053600 2,727,37273,333727333,93337273339,309333727333903,1830933372733390381,
%T A053600 92183093337273339038129,3921830933372733390381293,
%U A053600 1333921830933372733390381293331,18133392183093337273339038129333181
%N A053600 a(n+1) is the smallest palindromic prime with a(n) as a central substring.
%D A053600 G. L. Honaker, Jr. and Chris K. Caldwell, Palindromic Prime Pyramids, 
               J. RECREATIONAL MATHEMATICS, Vol. 30(3) 169-176, 1999-2000.
%H A053600 C. K. Caldwell, Prime Curios, <a href="http://primes.utm.edu/curios/page.php?short=18133...33181%20(35-digits\
               )">18133...33181 (35-digits)</a>
%H A053600 P. De Geest, <a href="http://www.worldofnumbers.com/palprim3.htm">Palindromic 
               Prime Pyramid Puzzle by G.L.Honaker,Jr</a>
%H A053600 G. L. Honaker, Jr. & C. K. Caldwell, <a href="http://www.utm.edu/staff/
               caldwell/preprints/JRM_prime_pyramids.pdf">Palindromic Prime Pyramids</
               a>
%H A053600 G. L. Honaker, Jr. & C. K. Caldwell, <a href="http://www.utm.edu/staff/
               caldwell/supplements">Supplement to "Palindromic Prime Pyramids"</
               a>
%H A053600 Ivars Peterson, <a href="http://www.maa.org/mathland/mathtrek_08_29_05.html">
               MAA Online</a>
%Y A053600 Cf. A000040, A002385, A047076, A052205, A034276, A046210, A052091, A052092.
%Y A053600 Sequence in context: A082438 A062066 A082621 this_sequence A090275 A090565 
               A072384
%Y A053600 Adjacent sequences: A053597 A053598 A053599 this_sequence A053601 A053602 
               A053603
%K A053600 base,nonn
%O A053600 1,1
%A A053600 G. L. Honaker, Jr. (honak3r(AT)gmail.com), Jan 20 2000