In a problem concerning the natural number, the way of seeking recursion relationship and getting the reseclt from primary value recursion is called recursion method.
在一个与自然数有关的问题中，通过寻找递推关系，由初始值递获得所需结果的方法称之为递推法。
In a problem concerning the natural number, the way of seeking recursion relationship and getting the reseclt from primary value recursion is called recursion method.
在一个与自然数有关的问题中，通过寻找递推关系，由初始值递获得所需结果的方法称之为递推法。
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