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1, 0, 0, 1, 0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 6, 6, 7, 9, 10, 12, 15, 17, 20, 24, 28, 32, 38, 43, 51, 59, 67, 77, 90, 101, 119, 133, 152, 172, 199, 220, 256, 283, 325, 359, 412, 453, 520, 569, 652, 711, 810, 882, 1005, 1091, 1238, 1341, 1519, 1641, 1854, 1999
(列表;图表;参考;听;历史;文本;内部格式)
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