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1, 0, 3, 6, 10, 23, 50, 99, 200, 404, 805, 1599, 3166, 6225, 12223, 23934, 46713, 90995, 176935, 343395, 665474, 1287918, 2489467, 4806805, 9272272, 17870317, 34414163, 66226890, 127365537, 244803475, 470278815, 902997083, 1733124564, 3325087228, 6377076320
(列表;图表;参考;听;历史;文本;内部格式)
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