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[数列] 一类数列

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青青子衿 posted 2014-1-19 13:04 |Read mode

$a_n=\frac{S_n-n}{S_{n-1}}$
$a_1=3$
能求吗？

谁会用Mathematica代出它的前20项？

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战巡 posted 2014-1-19 16:20

巨坑无比

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original poster 青青子衿 posted 2014-1-19 16:22

回复 2# 战巡
谢谢！！

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2025-7-22 15:28 GMT+8

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