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1, 1, 1, 6, 11, 51, 106, 492, 1115, 5317, 12912, 62283, 159146, 767083, 2036260, 9765849, 26735811, 127447531, 358219288, 1696410364, 4879284508, 22946311567, 67362378507, 314520916727, 940422623222, 4359165612216, 13252603911289, 60989336178364, 188258217816004, 860270701616648, 2692815154387672, 12220594038311373, 38750249291035303, 174684318231133053, 560585633201038635
(列表;图表;参考;听;历史;文本;内部格式)
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