%I A083509
%S A083509 25,121,127,128,216,289,343,347,625
%N A083509 Friedman numbers that involve the "^" sign.
%e A083509 121 is a member as 121 = 11^2. but 126 is not a member as 126 = 21*6 
               does not involve "^" sign.
%Y A083509 Cf. A036057.
%Y A083509 Sequence in context: A126412 A078815 A036057 this_sequence A031151 A016970 
               A062938
%Y A083509 Adjacent sequences: A083506 A083507 A083508 this_sequence A083510 A083511 
               A083512
%K A083509 more,nonn
%O A083509 1,1
%A A083509 Amarnath Murthy and Meenakshi Srikanth (amarnath_murthy(AT)yahoo.com), 
               May 05 2003