Question: Let g(x) = Enzoan be the ordinary generating function for {an}. Give a closed formula for {an} when (i) g(x) = x(x + 1)

Let g(x) = Enzoan be the ordinary generating function for {an}. Give a closed formula for {an} when (i) g(x) = x(x + 1) (1-x) (ii) g(x) = x(x + 4x + 1) (1 x) 4

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