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2, 4, 48, 1128, 34320, 1373520, 66662400, 3813742800, 251390391840, 18762435034560, 1564074260179200, 144043759065840480, 14524339063446051840, 1591480683038304938880, 188297909111509215258240, 23925266494618098054725280, 3249209307832618101782690880
(列表;图表;参考;听;历史;文本;内部格式)
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