%I A028869
%S A028869 4,9,841,961
%N A028869 Squares of primes with digits in descending order.
%C A028869 No other solutions below 4.10^18 (probably finite) - Dec 15 1999
%Y A028869 Cf. A028868, A028865, A028866.
%Y A028869 Sequence in context: A068708 A063248 A027522 this_sequence A073172 A111443 
               A051499
%Y A028869 Adjacent sequences: A028866 A028867 A028868 this_sequence A028870 A028871 
               A028872
%K A028869 nonn,base,hard
%O A028869 0,1
%A A028869 Patrick De Geest (pdg(AT)worldofnumbers.com)