False Fibonacci Series

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All of you know about Fibbonacci series. It is a series where F(n)=F(n-1)+F(n-2) and F(0)=F(1)=1; Now, when the professor was teaching Fibbonacci series, then a student had mistakenly copied the co-efficients and the starting values wrong. He wrote F(n)=2*F(n-1)+3*F(n-2); and F(0)=2 and F(1)=5; Now, he was getting the series all wrong. Anyway, he decided to name this series as 'False Fibbonacc

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solution.cppC++17

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