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士的数

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n士的数(cabtaxi number),表示为Cabtaxi(n),定义为能以n种方法写成两个或正或负或零的立方数之和的正整数中最小者。它的名字来自的士数的颠倒。对任何的n,这样的数均存在,因为的士数对所有的n都存在。现时只有10个士的数是已知的OEISA047696

之后,所有的士的数均用电脑来寻找。

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士的数
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