数列在高中数学中占有非常重要的地位,在《普通高中课程标准》中明确指出:探索并掌握等差、等比数列的通项公式;并能在具体问题情境中,发现数列的等差或等比关系,进而解决相应问题.它可以与方程,不等式,函数等知识相结合,考察转化与化归思想方法、方程与函数思想方法、分类讨论思想方法等,是培养缜密思维能力的良好素材.递推数 The sequence occupies a very important position in high school mathematics. It clearly states in the “Curriculum Standard for General Senior High School” that it explores and masters the general formula of arithmetic progression such as equi-difference, and can find the arithmetic progression of series It can be combined with the knowledge of equations, inequalities, functions and so on, and it can be considered as a good material for cultivating meticulous thinking by examining the methods of transforming and reverting to thought, the methods of equations and functions, Recursion number