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1, 1, 1, 2, 3, 6, 11, 22, 42, 90, 165, 364, 710, 1586, 2885, 6288, 12546, 28686, 55406, 130284, 261016, 555716, 1149559, 2552096, 5429610, 11510594, 23650462, 54063580, 109053128, 262968892, 501771275, 1192348336, 2635608642, 5766609158, 11935917602, 28867050172, 58702673480
(列表;图表;参考文献;听;历史;文本;内部格式)
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