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0, 1, 2, 4, 6, 9, 12, 16, 20, 25, 30, 36, 42, 48, 55, 63, 72, 81, 91, 101, 112, 123, 135, 147, 159, 171, 184, 198, 212, 227, 243, 260, 277, 295, 313, 332, 351, 370, 389, 409, 429, 450, 472, 494, 517, 540, 564, 588, 613, 638, 664, 690, 717, 744, 771, 799
(列表;图表;参考;听;历史;文本;内部格式)
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