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1, 2, 4, 7, 13, 22, 40, 70, 126, 225, 411, 746, 1376, 2537, 4719, 8799, 16509, 31041, 58635, 111012, 210870, 401427, 766149, 1465019, 2807195, 5387990, 10358998, 19945393, 38458183, 74248450, 143522116, 277737796, 538038782, 1043325197
(列表;图表;参考;听;历史;文本;内部格式)
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