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Omni-MATH / Let n be a positive integer. Given an integer coefficient polynomial f(x), define its [i]signature modulo n[/i] to be the (ordered) sequence f(1),…,f(n) modulo n. Of the n^(n) such…

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problem

Let n n be a positive integer. Given an integer coefficient polynomial f(x) f(x), define its [i]signature modulo n n[/i] to be the (ordered) sequence f(1),,f(n) f(1), \ldots , f(n) modulo n n. Of the nn n^n such n n-term sequences of integers modulo n n, how many are the signature of some polynomial f(x) f(x) if a) n n is a positive integer not divisible by the square of a prime. b) n n is a positive integer not divisible by the cube of a prime.
Plain-text mathematical notation (without MathML)
Let n be a positive integer. Given an integer coefficient polynomial f(x), define its [i]signature modulo n[/i] to be the (ordered) sequence f(1),…,f(n) modulo n. Of the n^(n) such n-term sequences of integers modulo n, how many are the signature of some polynomial f(x) if
a) n is a positive integer not divisible by the square of a prime.
b) n is a positive integer not divisible by the cube of a prime.
Original LaTeX notation
Let $ n$ be a positive integer. Given an integer coefficient polynomial $ f(x)$, define its [i]signature modulo $ n$[/i] to be the (ordered) sequence $ f(1), \ldots , f(n)$ modulo $ n$. Of the $ n^n$ such $ n$-term sequences of integers modulo $ n$, how many are the signature of some polynomial $ f(x)$ if
a) $ n$ is a positive integer not divisible by the square of a prime.
b) $ n$ is a positive integer not divisible by the cube of a prime.

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