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1, 1, 2, 2, 4, 4, 6, 6, 9, 9, 13, 13, 18, 18, 24, 24, 31, 31, 39, 39, 50, 50, 62, 62, 77, 77, 93, 93, 112, 112, 134, 134, 159, 159, 187, 187, 218, 218, 252, 252, 293, 293, 337, 337, 388, 388, 442, 442, 503, 503, 571, 571, 646, 646, 728, 728, 817, 817, 913
(列表;图表;参考;听;历史;文本;内部格式)
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