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请问：BJTU 1008 各位都是怎么做的？

Posted by auguste at 2008-10-01 09:48:13 
不会是直接递推吧，还是能求出通式？
在组合数学的书上看了一种求常系数线性齐次递推关系的方法，不过要先求出五次方程的特征根，好像有点不行。。。
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