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1, 1, 5, 25, 169, 1361, 12781, 136585, 1633745, 21594529, 312239701, 4898379641, 82810239865, 1500015354865, 28970936174909, 594083320767721, 12886811207794081, 294742414455540545, 7087332775240107685, 178707496551303048409, 4714241296084031285321, 129830157857411005318801
(列表;图表;参考;听;历史;文本;内部格式)
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