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5, -10, 40, -160, 624, -2580, 11160, -48910, 217000, -976248, 4438920, -20346280, 93900240, -435959820, 2034504992, -9536767660, 44878791360, -211927516500, 1003867701480, -4768372069968, 22706531339280, -108372079190340, 518301258916440, -2483526875798780
(列表;图表;参考;听;历史;文本;内部格式)
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