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0, 21, 171, 666, 1830, 4095, 8001, 14196, 23436, 36585, 54615, 78606, 109746, 149331, 198765, 259560, 333336, 421821, 526851, 650370, 794430, 961191, 1152921, 1371996, 1620900, 1902225, 2218671, 2573046, 2968266, 3407355, 3893445, 4429776, 5019696, 5666661
(列表;图表;参考;听;历史;文本;内部格式)
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