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1, 4, 12, 36, 100, 276, 748, 2012, 5356, 14172, 37276, 97604, 254508, 661364, 1713292, 4426428, 11408300, 29339324, 75305596, 192945124, 493554916, 1260643868, 3215551292, 8191635220, 20843850764, 52980214316, 134527157780, 341268196780
(列表;图表;参考;听;历史;文本;内部格式)
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