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按规律填数:1 2 4 8 16 31
巨大八爪鱼
武林盟主 二十一级
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Floor 1 Posted at: 11/24/24 16:46
这个数列的名称叫A000127
Maximal number of regions obtained by joining n points around a circle by straight lines. Also number of regions in 4-space formed by n-1 hyperplanes.
(Formerly M1119 N0427)
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Last reply time: 11/24/24 16:46
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