OFFSET
1,1
COMMENTS
2^6=64,3^6=729,4^6=4096=2^12 is not in the sequence,5^6=15625,...
MATHEMATICA
Select[Range[2, 100], GCD@@Last/@FactorInteger@#==1&]^6
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Joseph Stephan Orlovsky, Dec 19 2008
EXTENSIONS
Edited and extended by Ray Chandler, Dec 22 2008
STATUS
approved