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3, 13, 57, 250, 1097, 4814, 21126, 92711, 406861, 1785505, 7835670, 34386757, 150905930, 662249126, 2906273499, 12754151453, 55971462889, 245630191042, 1077945575073, 4730553104614, 20759983799798, 91104976064543, 399813253409277, 1754576363517905, 7699940382577342, 33791109425623069
(列表;图表;参考;听;历史;文本;内部格式)
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