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0, 0, 1, 2, 4, 7, 12, 21, 38, 69, 126, 234, 437, 825, 1565, 2982, 5710, 10967, 21138, 40842, 79099, 153510, 298435, 581095, 1133110, 2212231, 4324045, 8460649, 16570079, 32480219, 63717408, 125088092, 245735287, 483050536, 950104880
(列表;图表;参考;听;历史;文本;内部格式)
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