Figure-It-Out Function! - Part 2: Semi- A.P.

Algebra Level 3

A function f:ZZf:\mathbb{Z}\rightarrow\mathbb{Z}, such that f(n)=f(n1)+f(n+1)f(n)=f(n-1)+f(n+1), with f(1)=2f(1)=2, and f(2)=1f(2)=1. Find f(2015)f(2015)

This problem is part of the Figure-It-Out Function! series

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