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3, 40, 336, 2304, 14080, 79872, 430080, 2228224, 11206656, 55050240, 265289728, 1258291200, 5888802816, 27246198784, 124822487040, 566935683072, 2555505541120, 11441792876544, 50921132261376, 225399883694080, 992858999881728, 4354066045992960
(列表;图表;参考;听;历史;文本;内部格式)
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