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1, 1, 4, 7, 10, 22, 46, 88, 175, 343, 820, 1693, 3448, 7399, 16807, 36322, 76609, 166144, 378730, 831706, 1796773, 3959785, 9004330, 20002942, 43959124, 97356997, 223477834, 500128180, 1109072953, 2483239909, 5696350633, 12837653710, 28703742610
(列表;图表;参考;听;历史;文本;内部格式)
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