OFFSET
1,1
EXAMPLE
121 is a member as 121 = 11^2. but 126 is not a member as 126 = 21*6 does not involve "^" sign.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 05 2003
EXTENSIONS
Corrected and extended by Arkadiusz Wesolowski, Jun 02 2013
STATUS
approved