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1, 0, 1, 1, 5, 9, 23, 39, 97, 197, 465, 969, 2161, 4605, 10202, 22051, 48438, 105028, 229692, 499620, 1091268, 2376641, 5185742, 11299467, 24645179, 53718931, 117144203, 255371099, 556824105, 1213941393, 2646824821, 5770590379
(列表;图表;参考;听;历史;文本;内部格式)
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