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1, -1, 5, -11, 33, -87, 241, -655, 1793, -4895, 13377, -36543, 99841, -272767, 745217, -2035967, 5562369, -15196671, 41518081, -113429503, 309895169, -846649343, 2313089025, -6319476735, 17265131521, -47169216511, 128868696065, -352075825151, 961889042433, -2627929735167
(列表;图表;参考;听;历史;文本;内部格式)
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