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0, 0, 1, 3, 9, 24, 62, 156, 387, 951, 2323, 5652, 13716, 33228, 80405, 194415, 469845, 1135092, 2741626, 6620928, 15987663, 38603019, 93204647, 225030024, 543293352, 1311663096, 3166694569, 7645173627, 18457238241, 44559967920, 107577688310, 259716176580
(列表;图表;参考;听;历史;文本;内部格式)
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