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1, 1, 2, 7, 13, 30, 61, 125, 250, 494, 960, 1835, 3487, 6520, 12105, 22239, 40515, 73207, 131315, 233831, 413625, 727100, 1270405, 2207243, 3814155, 6557164, 11217391, 19099932, 32375026, 54640509, 91836697, 153739008, 256379360, 425964293, 705197513, 1163452547, 1913096832, 3135609791
(列表;图表;参考;听;历史;文本;内部格式)
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