Question

Let c_ncn​ be the Catalan sequence.

Give the generating function for the sequence

a_n=c_n+c_{n-1}+c_{n-2}+c_{n-3}+\ldots+c_0an​=cn​+cn−1​+cn−2​+cn−3​+…+c0​

Please use the variable q.​

Answer 1

Answer:

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