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1, 3, 4, 13, 22, 84, 169, 585, 1368, 4352, 11018, 33610, 89097, 265059, 724070, 2122093, 5909279, 17178016, 48426584, 140179658, 398403254, 1150970558, 3289206057, 9495961430, 27241417922, 78650410773, 226250990962, 653512163209
(列表;图表;参考;听;历史;文本;内部格式)
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