Let \(A =\) \(\{1\), \(6\), \(8\), \(11\), \(13\}\), \(B = N\) and \(f : A \rightarrow B\) be defined by \(f(x) = x^2\). Find the range of \(f\). Identify the type of function.
1. The range of \(f = \{\), , , , \(\}\)
[Note: Enter the numbers in the ascending order.]
2. The given function is function.