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[数列] 又被一初中生自编的难住了,数列递推(2)

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realnumber Posted 2021-5-8 22:08 |Read mode

$a_1=1,a_n=a_{n-1}^2+1,n\ge 2$,求这个数列的通项公式.

我猜没有简单表达式,又没方法搜索下

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色k Posted 2021-5-8 22:11

这个真得扔

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Author| realnumber Posted 2021-5-8 22:16

回复 2# 色k

我也觉得是

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