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1, 1, 1, 2, 4, 10, 24, 58, 142, 359, 919, 2384, 6240, 16487, 43894, 117689, 317400, 860585, 2344280, 6413109, 17610746, 48527584, 134141036, 371862499, 1033586232, 2879818131, 8041864259, 22503532974, 63093269641, 177213423131
(列表;图表;参考;听;历史;文本;内部格式)
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