| 数据
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0, 0, 2, 12, 96, 1000, 12960, 201684, 3670016, 76527504,180000000001800000000, 47158953820, 1362182012928, 43011849456888, 1474041721757696, 54493461914062500, 2161727821137838080, 91597537648314105376, 4128944057284204560384, 197293926880252878693804, 9961472000000000000000000
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