Chef and Combinatorics

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Chef Yakawaka gives you a problem on combinatorics. Try to solve it... Chef likes combinatorics. He came up with a function which sums up as.. The function follows : Now you need find the value of this function for a given value of n. Since the total value of this function can be very large, output the answer for each value of n modulo 109+7 Input - The first line of input contains T the no

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solution.cppC++17

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