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1, 27, 378, 3653, 27378, 169533, 902537, 4244616, 17985915, 69697614, 249887403, 836666037, 2635961496, 7863966540, 22333781484, 60654192289, 158133109329, 397109727144, 963390950574, 2263730057379, 5163854598459, 11458797521755
(列表;图表;参考;听;历史;文本;内部格式)
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