1,1
121 is a member as 121 = 11^2. but 126 is not a member as 126 = 21*6 does not involve "^" sign.
Cf. A036057.
Sequence in context: A126412 A078815 A036057 this_sequence A031151 A016970 A062938
Adjacent sequences: A083506 A083507 A083508 this_sequence A083510 A083511 A083512
more,nonn
Amarnath Murthy and Meenakshi Srikanth (amarnath_murthy(AT)yahoo.com), May 05 2003
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