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1, 3, 9, 29, 105, 401, 1549, 6117, 24863, 102513, 425667, 1788859, 7605783, 32534495, 139913313, 606044139, 2640192189, 11543795319, 50681045899, 223505643799, 988925201653, 4387436074431, 19525621840481, 87147777000535, 389827684213269, 1747541447885141, 7852036948376335, 35350863691511405
(列表;图表;参考;听;历史;文本;内部格式)
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