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A276108
Numbers expressible as perfect powers in a composite number of ways.
0
1, 65536, 43046721, 68719476736
OFFSET
1,2
COMMENTS
Old title was "Values of A117453(n) such that A175066(n) is not a prime number."
Terms are 1, 2^16, 3^16, 2^36, ...
Numbers m^k, where m is not a perfect power and k is a composite number in A154893 or 0. - Charlie Neder, Mar 02 2019
EXAMPLE
65536 = 2^16 is a term because there are 4 corresponding ways that are 2^16, 4^8, 16^4, 256^2.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Altug Alkan, Aug 27 2016
EXTENSIONS
New title from Charlie Neder, Mar 04 2019
STATUS
approved