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0, 1, -1, -1, 12, -36, -120, 2148, -9744, -64572, 1454220, -8208828, -96161472, 2479373064, -15862726152, -295638678072, 8425875692160, -56585105164080, -1653901130160720, 50485379331780720, -336548011774484160, -14999134695936065280, 482781746150042834880, -2963015696186375016960
(列表;图表;参考;听;历史;文本;内部格式)
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