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1, 2, 2, 5, 8, 19, 39, 95, 223, 554, 1373, 3493, 8906, 23016, 59805, 156588, 412082, 1090443, 2897828, 7733433, 20712345, 55661171, 150031505, 405533996, 1098949141, 2985066757, 8125987470, 22165517960, 60575472281, 165835969094
(列表;图表;参考;听;历史;文本;内部格式)
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