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0, 0, 0, 4, 16, 53, 169, 512, 1706, 6144, 23040, 87380, 327680, 1217097, 4509419, 16777216, 62914560, 237677216, 902430720, 3435973836, 13102206738, 50026607709, 191312873561, 733007751680, 2814062572336, 10823317585920, 41694904974720, 160842843834660
(列表;图表;参考;听;历史;文本;内部格式)
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