First Date

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A girl has challenged Shubham that if he can solve the sequence she will go on a date with him. Help Shubham so that he can go on his first date else like every other year this year also he would have to spend Valentine’s Day alone. He has to find N'th term of this sequence. 2, 4, 11, 36, 147, 778 ... ... ... ... Nth term. Input Only one natural number N. Output One natural number. N'th term

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solution.cppC++17

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