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0, 0, 0, 0, 0, 1, 4, 11, 28, 60, 131, 263, 530, 1029, 2009, 3853, 7414, 14152, 27105, 51755, 99069, 189558, 363468, 697302, 1340220, 2578362, 4968001, 9582682, 18508226, 35784670, 69266825, 134207336, 260290846, 505274108, 981691926
(列表;图表;参考;听;历史;文本;内部格式)
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