Barycentric Polynomail Interpolation, Evaluating the approximation/function

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Suppose I have following Barycentric Form of a interpolating polynomial of a function f(x)

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How would I evaluate $$f(0), f(1),f(2),f(3)?$$

Given $$x_0 = 0, x_1 = 1, x_2= 2, x_3=3$$

f(x) is not given.

Using the definition of Barycentric Form, I was able to get

$$f(0) = f(1) = f(2) = f(3) = 6$$

Is this correct?