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0, 1, 5, 20, 82, 335, 1402, 5949, 25652, 111963, 494157, 2201270, 9886034, 44712737, 203489627, 931191850, 4282171470, 19778577235, 91715812335, 426824400684, 1992828161414, 9332192498397, 43821128181652, 206288470970025, 973361629499032, 4602638827207605
(列表;图表;参考;听;历史;文本;内部格式)
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