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1, 6, 42, 380, 4320, 59682, 974848, 18423288, 396000000, 9548713790, 255409127424, 7507985556084, 240659872940032, 8355664160156250, 312437224148828160, 12519386633593104368, 535233488907211702272, 24320165501859426874998, 1170472960000000000000000, 59483046140261749951587180
(列表;图表;参考;听;历史;文本;内部格式)
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