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1, 0, 5, 7, 111, 191, 1279, 511, 31743, 61439, 376831, 458751, 7077887, 11534335, 79691775, 16777215, 2113929215, 4160749567, 25232932863, 32212254719, 472446402559, 790273982463, 5360119185407, 1649267441663, 134140418588671, 250688651132927
(列表;图表;参考;听;历史;文本;内部格式)
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