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1, 10, 60, 264, 930, 2766, 7205, 16880, 36279, 72610, 136906, 245400, 421200, 696294, 1113915, 1731296, 2622845, 3883770, 5634184, 8023720, 11236686, 15497790, 21078465, 28303824, 37560275, 49303826, 64069110, 82479160, 105255964, 133231830, 167361591, 208735680
(列表;图表;参考文献;听;历史;文本;内部格式)
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