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0, 2, 6, 8, 18, 42, 57, 105, 372, 1344, 1800, 7291, 32524, 150567, 342906, 738854, 3298239, 20772345, 36965663, 184510241, 1433356755, 7840220998, 56906577387, 113611483212, 843530932394, 6257315565011, 60692272232438, 70311381976766, 692150332693349, 4888462119949170
(列表;图表;参考;听;历史;文本;内部格式)
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