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1, 1, 10, 46, 191, 740, 2912, 10941, 40345, 144703, 509693, 1761738, 5993434, 20076668, 66329914, 216307961, 696990583, 2220665661, 7000973556, 21853019072, 67575353580, 207111103623, 629440843762, 1897670845715, 5677604053474, 16863081962184, 49736388996376, 145714874857754
(列表;图表;参考;听;历史;文本;内部格式)
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