Squarefree Core
The multiplicative function is defined to map positive integers n to t-free numbers by reducing the exponents in the prime power representation modulo t:
The value set of, in particular, are the square-free integers. Their Dirichlet generating functions are
.
OEIS representatives are A007913 (t=2), A050985 (t=3) and A053165 (t=4).
Read more about this topic: Square-free Integer
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