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1, 18, 160, 1120, 6912, 39424, 212992, 1105920, 5570560, 27394048, 132120576, 627048448, 2936012800, 13589544960, 62277025792, 282930970624, 1275605286912, 5712306503680, 25426206392320, 112562502893568, 495879744126976, 2174833999740928, 9499780463984640
(列表;图表;参考;听;历史;文本;内部格式)
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