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3, 10, 25, 126, 336, 694, 3711, 22935, 155628, 789009, 4133207, 26216386, 172746848, 1257901128, 8859163896, 63208414749, 453778734700, 3084827391031, 21322774479601, 144228129141558, 982574515258416, 7457862499069701, 62895482731826525, 635323164540457770
(列表;图表;参考;听;历史;文本;内部格式)
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