%I A068445
%S A068445 101101,129921,1837381,127665878878566721,1037998220228997301
%N A068445 Palindromic pseudoprimes (base 2).
%H A068445 Patrick De Geest, <a href="http://www.worldofnumbers.com/won124.htm">
               Palindromic Pseudoprimes (base 2)</a>
%H A068445 Carlos Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_170.htm">
               Puzzle 170 </a>
%e A068445 a(2)= 129921, So the 2nd palindromic pseudoprime(base-2) number is 129921.
%Y A068445 Sequence in context: A122246 A107274 A107276 this_sequence A115828 A161796 
               A096929
%Y A068445 Adjacent sequences: A068442 A068443 A068444 this_sequence A068446 A068447 
               A068448
%K A068445 hard,more,nice,nonn
%O A068445 1,1
%A A068445 Shyam Sunder Gupta (guptass(AT)rediffmail.com), Mar 10 2002; extended 
               Oct 20 2002