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1, 2, 5, 14, 34, 96, 261, 692, 1680, 4540, 12540, 34552, 92728, 251572, 662340, 1729628, 4261528, 11130160, 29802200, 80103640, 218398544, 595050400, 1621285648, 4411577744, 11776668772, 31899937136, 85998657296, 231056788736, 607876418544, 1615730650080, 4228062351360, 11047956392096, 27736466241312, 71915999814720, 188591683462784, 495344539985920, 1321221455067520, 3505058052234400
(列表;图表;参考;听;历史;文本;内部格式)
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